The Southwest 3400 is a 55L backpack made in Maine (USA) by Hyperlite Mountain Gear.<\/a> If you need a backpack for traversing challenging terrains, the Southwest has all the advantages.<\/p>\n<\/iframe><\/p>\n<hr \/>\n<h2>When to Use<\/h2>\n<p>It has a total capacity of 65 liters: 55 liters for the main body and another 10 liters in the external pockets. With this capacity, it’s perfect for long trips lasting several weeks and carrying loads of up to 18kg.<\/p>\n<p>It is designed to withstand any climate anywhere, be it rainy, desert, or snowy. That’s why, unlike the Junction and Windrider, all its external pockets have a rigid fabric to endure wear and tear when constantly rubbing or poking against vegetation or rocks.<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-14922 size-full\" src=\"https:\/\/superligero.es\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a1.jpg\" alt=\"55L Backpack\" width=\"640\" height=\"427\" srcset=\"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a1.jpg 640w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a1-380x254.jpg 380w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a1-350x234.jpg 350w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a1-595x397.jpg 595w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/p>\n<div class=\"texto-instagram\">\n<p>Photo <a class=\"notranslate\" href=\"https:\/\/www.instagram.com\/wherethehellismatt\/\" target=\"_blank\" rel=\"noopener\">@wherethehellismatt<\/a><\/p>\n<\/div>\n<hr \/>\n<h2>Design<\/h2>\n<p>It features a large main compartment, an internal sleeve for the hydration system, and large pockets on the belt. Additionally, the top is rollable, allowing you to adjust the load as you go. It can even hold a jacket, a sleeping pad, or ropes.<\/p>\n<p>They use two removable aluminum supports to transfer the weight to the lumbar belt instead of a full frame. The belt is sewn to the backpack, unlike other backpacks. This ensures everything stays in place and enhances carrying.<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-14923 size-full\" src=\"https:\/\/superligero.es\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a2.jpg\" alt=\"55L Backpack\" width=\"640\" height=\"427\" srcset=\"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a2.jpg 640w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a2-380x254.jpg 380w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a2-350x234.jpg 350w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a2-595x397.jpg 595w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/p>\n<div class=\"texto-instagram\">\n<p>Photo <a class=\"notranslate\" href=\"https:\/\/www.instagram.com\/sam_ramenking_conley\/\" target=\"_blank\" rel=\"noopener\">@sam_ramenking_conley<\/a><\/p>\n<\/div>\n<hr \/>\n<h2>Made of Dyneema Composite Hybrid<\/h2>\n<p>The 55L Southwest backpack uses a hybrid fabric composed of Dyneema and polyester which, in addition to its mechanical qualities, is also very durable.<\/p>\n<p>Dyneema is a waterproof fabric and does not absorb water like other UL fabrics. This, and the fact that the seams are sealed, means we could say that it is virtually waterproof.<\/p>\n<hr \/>\n<h2>Specifications<\/h2>\n<ul>\n<li>Model 3400 Southwest Pack.<\/li>\n<li>Weight for both sizes 899gr<\/li>\n<li>White color.<\/li>\n<li>Volume: 65 liters in total: 55 liters internal + 10 liters for external pockets.<\/li>\n<li>Aluminum back frame (flexible strips).<\/li>\n<li>Rollable top closure.<\/li>\n<li>Support for ice axes\/poles.<\/li>\n<\/ul>\n<hr \/>\n<h2>Size Charts<\/h2>\n<table style=\"height: 83px;\" width=\"645\">\n<tbody>\n<tr>\n<td colspan=\"2\" width=\"197\">\n<h4>Size (measure your back length)<\/h4>\n<\/td>\n<\/tr>\n<tr>\n<td>M<\/td>\n<td>42 – 48 cm<\/td>\n<\/tr>\n<tr>\n<td>L<\/td>\n<td>48 – 54 cm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong><img decoding=\"async\" class=\"alignnone wp-image-2978 size-full\" src=\"https:\/\/superligero.es\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero.png\" alt=\"gossamer gear size guide\" width=\"720\" height=\"400\" srcset=\"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero.png 720w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero-350x194.png 350w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero-595x331.png 595w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero-380x211.png 380w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero-300x167.png 300w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero-680x378.png 680w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/strong><\/p>\n<p> <\/p>\n<hr \/>\n<h2>Ratings and Reviews<\/h2>\n","protected":false},"excerpt":{"rendered":"<p>Ultralight backpack, durable, surprisingly comfortable, and versatile. With a minimalist design and built with Dyneema for increased durability, it truly stands out as a winner.<\/p>\n","protected":false},"featured_media":14916,"comment_status":"open","ping_status":"closed","template":"","meta":{"_trash_the_other_posts":false},"product_brand":[8082],"product_cat":[103],"product_tag":[],"class_list":{"0":"post-14908","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-hyperlite-mountain-gear","7":"product_cat-ultralight-backpacks","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-variable"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.3 (Yoast SEO v24.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>55L Backpack for Expeditions Southwest Pack - SuperLigero<\/title>\n<meta name=\"description\" content=\"Buy the Hyperlite Mountain Gear Southwes 55L lightweight trekking backpack; extremely strong, lightweight, and durable made of Dyneema.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Southwest Pack 55\" \/>\n<meta property=\"og:description\" content=\"Buy the Hyperlite Mountain Gear Southwes 55L lightweight trekking backpack; extremely strong, lightweight, and durable made of Dyneema.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/\" \/>\n<meta property=\"og:site_name\" content=\"SuperLigero\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-25T22:31:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"595\" \/>\n\t<meta property=\"og:image:height\" content=\"738\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/\",\"url\":\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/\",\"name\":\"55L Backpack for Expeditions Southwest Pack - SuperLigero\",\"isPartOf\":{\"@id\":\"https:\/\/superligero.es\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-1.jpg\",\"datePublished\":\"2022-05-11T19:58:04+00:00\",\"dateModified\":\"2025-03-25T22:31:42+00:00\",\"description\":\"Buy the Hyperlite Mountain Gear Southwes 55L lightweight trekking backpack; 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extremely strong, lightweight, and durable made of Dyneema.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/","og_locale":"en_US","og_type":"article","og_title":"Southwest Pack 55","og_description":"Buy the Hyperlite Mountain Gear Southwes 55L lightweight trekking backpack; extremely strong, lightweight, and durable made of Dyneema.","og_url":"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/","og_site_name":"SuperLigero","article_modified_time":"2025-03-25T22:31:42+00:00","og_image":[{"width":595,"height":738,"url":"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-1.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/","url":"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/","name":"55L Backpack for Expeditions Southwest Pack - SuperLigero","isPartOf":{"@id":"https:\/\/superligero.es\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/#primaryimage"},"image":{"@id":"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/#primaryimage"},"thumbnailUrl":"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-1.jpg","datePublished":"2022-05-11T19:58:04+00:00","dateModified":"2025-03-25T22:31:42+00:00","description":"Buy the Hyperlite Mountain Gear Southwes 55L lightweight trekking backpack; 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<\/iframe><\/p>\n<hr \/>\n<h2>When to Use<\/h2>\n<p>It has a total capacity of 65 liters: 55 liters for the main body and another 10 liters in the external pockets. With this capacity, it’s perfect for long trips lasting several weeks and carrying loads of up to 18kg.<\/p>\n<p>It is designed to withstand any climate anywhere, be it rainy, desert, or snowy. That’s why, unlike the Junction and Windrider, all its external pockets have a rigid fabric to endure wear and tear when constantly rubbing or poking against vegetation or rocks.<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-14922 size-full\" src=\"https:\/\/superligero.es\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a1.jpg\" alt=\"55L Backpack\" width=\"640\" height=\"427\" srcset=\"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a1.jpg 640w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a1-380x254.jpg 380w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a1-350x234.jpg 350w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a1-595x397.jpg 595w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/p>\n<div class=\"texto-instagram\">\n<p>Photo <a class=\"notranslate\" href=\"https:\/\/www.instagram.com\/wherethehellismatt\/\" target=\"_blank\" rel=\"noopener\">@wherethehellismatt<\/a><\/p>\n<\/div>\n<hr \/>\n<h2>Design<\/h2>\n<p>It features a large main compartment, an internal sleeve for the hydration system, and large pockets on the belt. Additionally, the top is rollable, allowing you to adjust the load as you go. It can even hold a jacket, a sleeping pad, or ropes.<\/p>\n<p>They use two removable aluminum supports to transfer the weight to the lumbar belt instead of a full frame. The belt is sewn to the backpack, unlike other backpacks. This ensures everything stays in place and enhances carrying.<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-14923 size-full\" src=\"https:\/\/superligero.es\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a2.jpg\" alt=\"55L Backpack\" width=\"640\" height=\"427\" srcset=\"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a2.jpg 640w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a2-380x254.jpg 380w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a2-350x234.jpg 350w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-a2-595x397.jpg 595w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/p>\n<div class=\"texto-instagram\">\n<p>Photo <a class=\"notranslate\" href=\"https:\/\/www.instagram.com\/sam_ramenking_conley\/\" target=\"_blank\" rel=\"noopener\">@sam_ramenking_conley<\/a><\/p>\n<\/div>\n<hr \/>\n<h2>Made of Dyneema Composite Hybrid<\/h2>\n<p>The 55L Southwest backpack uses a hybrid fabric composed of Dyneema and polyester which, in addition to its mechanical qualities, is also very durable.<\/p>\n<p>Dyneema is a waterproof fabric and does not absorb water like other UL fabrics. This, and the fact that the seams are sealed, means we could say that it is virtually waterproof.<\/p>\n<hr \/>\n<h2>Specifications<\/h2>\n<ul>\n<li>Model 3400 Southwest Pack.<\/li>\n<li>Weight for both sizes 899gr<\/li>\n<li>White color.<\/li>\n<li>Volume: 65 liters in total: 55 liters internal + 10 liters for external pockets.<\/li>\n<li>Aluminum back frame (flexible strips).<\/li>\n<li>Rollable top closure.<\/li>\n<li>Support for ice axes\/poles.<\/li>\n<\/ul>\n<hr \/>\n<h2>Size Charts<\/h2>\n<table style=\"height: 83px;\" width=\"645\">\n<tbody>\n<tr>\n<td colspan=\"2\" width=\"197\">\n<h4>Size (measure your back length)<\/h4>\n<\/td>\n<\/tr>\n<tr>\n<td>M<\/td>\n<td>42 – 48 cm<\/td>\n<\/tr>\n<tr>\n<td>L<\/td>\n<td>48 – 54 cm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong><img decoding=\"async\" class=\"alignnone wp-image-2978 size-full\" src=\"https:\/\/superligero.es\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero.png\" alt=\"gossamer gear size guide\" width=\"720\" height=\"400\" srcset=\"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero.png 720w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero-350x194.png 350w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero-595x331.png 595w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero-380x211.png 380w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero-300x167.png 300w, https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2017\/12\/Gu\u00eda-de-tallas-Mochilas-Gossamer-Gear-SuperLigero-680x378.png 680w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/strong><\/p>\n<p> <\/p>\n<hr \/>\n<h2>Ratings and Reviews<\/h2>\n","protected":false},"excerpt":{"rendered":"<p>Ultralight backpack, durable, surprisingly comfortable, and versatile. With a minimalist design and built with Dyneema for increased durability, it truly stands out as a winner.<\/p>\n","protected":false},"featured_media":14916,"comment_status":"open","ping_status":"closed","template":"","meta":{"_trash_the_other_posts":false},"product_brand":[8082],"product_cat":[103],"product_tag":[],"class_list":{"0":"post-14908","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-hyperlite-mountain-gear","7":"product_cat-ultralight-backpacks","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-variable"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.3 (Yoast SEO v24.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>55L Backpack for Expeditions Southwest Pack - SuperLigero<\/title>\n<meta name=\"description\" content=\"Buy the Hyperlite Mountain Gear Southwes 55L lightweight trekking backpack; extremely strong, lightweight, and durable made of Dyneema.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Southwest Pack 55\" \/>\n<meta property=\"og:description\" content=\"Buy the Hyperlite Mountain Gear Southwes 55L lightweight trekking backpack; extremely strong, lightweight, and durable made of Dyneema.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/\" \/>\n<meta property=\"og:site_name\" content=\"SuperLigero\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-25T22:31:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"595\" \/>\n\t<meta property=\"og:image:height\" content=\"738\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/\",\"url\":\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/\",\"name\":\"55L Backpack for Expeditions Southwest Pack - SuperLigero\",\"isPartOf\":{\"@id\":\"https:\/\/superligero.es\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/55l-backpack\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/superligero.es\/en\/wp-content\/uploads\/sites\/2\/2022\/05\/Mochila-de-55L-1.jpg\",\"datePublished\":\"2022-05-11T19:58:04+00:00\",\"dateModified\":\"2025-03-25T22:31:42+00:00\",\"description\":\"Buy the Hyperlite Mountain Gear Southwes 55L lightweight trekking backpack; 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