{"id":18734,"date":"2026-06-06T22:47:32","date_gmt":"2026-06-06T20:47:32","guid":{"rendered":"https:\/\/superligero.es\/en\/material\/sin%20categorizar\/arc-haul-ultra\/"},"modified":"2026-06-10T22:20:59","modified_gmt":"2026-06-10T20:20:59","slug":"arc-haul-ultra","status":"publish","type":"product","link":"https:\/\/superligero.es\/en\/material\/ultralight-backpacks\/arc-haul-ultra\/","title":{"rendered":"Arc Haul Ultra 50L"},"content":{"rendered":"<p>The Arc Haul Ultra 50 is made in Florida (United States) by <a href=\"https:\/\/zpacks.com\" target=\"_blank\" rel=\"noopener noreferrer\">Zpacks<\/a>. It is an ultralight backpack designed for hikers who want to keep weight very low without giving up a comfortable, ventilated frame.<\/p>\n<p>Its main difference compared to other ultralight backpacks is the Arc Frame system, which holds the pack away from your back to create an air gap that improves ventilation while hiking.<br \/>\n<iframe src=\"https:\/\/www.youtube.com\/embed\/J_R46EIlwVk\" width=\"640\" height=\"360\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<hr \/>\n<h2>When to use it<\/h2>\n<p>The Arc Haul Ultra 50 makes sense for multi-day routes where you want a lightweight backpack but still need to carry enough food, water, or gear to remain reasonably self-sufficient.<\/p>\n<p>It is especially interesting for hikers who find packs that sit directly against the back uncomfortable and want better ventilation without having to switch to much heavier traditional backpacks.<\/p>\n<hr \/>\n<h2>Design<\/h2>\n<p>Its structure uses a curved carbon fiber frame that keeps the pack away from your back with a tensioned mesh panel. This helps reduce sweat buildup and improves load transfer to the hipbelt.<\/p>\n<p>The side pockets, oversized front pocket, and roll-top closure make it easy to organize your gear. In addition, the torso adjustment system allows the pack to fit different back lengths.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-21371\" src=\"https:\/\/superligero.es\/wp-content\/uploads\/2026\/06\/Zpacks-Arc-Haul-Ultra-50-Mochila-ultraligera-dew2.jpg\" alt=\"Zpacks Arc Haul Ultra 50 | Ultralight backpack\" width=\"640\" height=\"427\" \/><\/p>\n<div class=\"texto-instagram\">\n<p>Photo <a class=\"x1i10hfl xjbqb8w x1ejq31n x18oe1m7 x1sy0etr xstzfhl x972fbf x10w94by x1qhh985 x14e42zd x9f619 x1ypdohk xt0psk2 x3ct3a4 xdj266r x14z9mp xat24cr x1lziwak xexx8yu xyri2b x18d9i69 x1c1uobl x16tdsg8 x1hl2dhg xggy1nq x1a2a7pz notranslate _a6hd\" tabindex=\"0\" role=\"link\" href=\"https:\/\/www.instagram.com\/angusgus\/\">@angusgus<\/a>\u2800<\/p>\n<\/div>\n<hr \/>\n<h2>Made of Ultra 100X<\/h2>\n<p>The Arc Haul Ultra 50 is made from Ultra 100X fabric, a UHMWPE laminate developed to offer a very appealing combination of durability, waterproofness, and low weight.<\/p>\n<p>Sealed seams and the laminated fabric help protect the contents from rain and moisture. Even so, to fully protect a sleeping bag or spare clothing, it is still recommended to use an internal dry bag.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-21372\" src=\"https:\/\/superligero.es\/wp-content\/uploads\/2026\/06\/Zpacks-Arc-Haul-Ultra-50-frddse.jpg\" alt=\"Zpacks Arc Haul Ultra 50 | Ultralight backpack\" width=\"640\" height=\"427\" \/><\/p>\n<div class=\"texto-instagram\">\n<p>Photo <a class=\"x1i10hfl xjbqb8w x1ejq31n x18oe1m7 x1sy0etr xstzfhl x972fbf x10w94by x1qhh985 x14e42zd x9f619 x1ypdohk xt0psk2 x3ct3a4 xdj266r x14z9mp xat24cr x1lziwak xexx8yu xyri2b x18d9i69 x1c1uobl x16tdsg8 x1hl2dhg xggy1nq x1a2a7pz notranslate _a6hd\" tabindex=\"0\" role=\"link\" href=\"https:\/\/www.instagram.com\/joyy0924\/\">@joyy0924<\/a><\/p>\n<\/div>\n<hr \/>\n<h2>Specifications<\/h2>\n<ul>\n<li><strong>Color: Storm Gray<\/strong><\/li>\n<li><strong>Hipbelt: Same size as backpack.<\/strong><\/li>\n<li>Total volume: 50 L<\/li>\n<li>Main compartment: 37 L.<\/li>\n<li>Front pocket: 8 L.<\/li>\n<li>Side pockets: 2.5 L each.<\/li>\n<li>Recommended load: up to 18 kg.<\/li>\n<li>Curved carbon fiber frame.<\/li>\n<li>Ventilated back mesh.<\/li>\n<li>Ultra 100X fabric.<\/li>\n<li>Roll-top closure.<\/li>\n<li>Compatible with Zpacks modular accessories.<\/li>\n<\/ul>\n<hr \/>\n<h2>Size chart<\/h2>\n<table style=\"width: 100%; border-collapse: collapse;\">\n<tbody>\n<tr>\n<td colspan=\"2\">\n<h4>Dimensions<\/h4>\n<\/td>\n<\/tr>\n<tr>\n<td>Total volume<\/td>\n<td>50 L<\/td>\n<\/tr>\n<tr>\n<td>Main compartment<\/td>\n<td>37 L<\/td>\n<\/tr>\n<tr>\n<td>Front pocket<\/td>\n<td>8 L<\/td>\n<\/tr>\n<tr>\n<td>Side pockets<\/td>\n<td>2.5 L each<\/td>\n<\/tr>\n<tr>\n<td>Maximum load<\/td>\n<td>18 kg<\/td>\n<\/tr>\n<tr>\n<td>Approx. weight size M<\/td>\n<td>606 g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>*Weight may vary depending on size, belt, and selected configuration.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ultralight Zpacks Arc Haul Ultra 50 backpack with a curved carbon fiber frame and ventilated back panel. Combines comfort, ventilation, and high load-carrying capacity for long-distance hikes at a very low weight.<\/p>\n","protected":false},"featured_media":18736,"comment_status":"open","ping_status":"closed","template":"","meta":{"_trash_the_other_posts":false,"editor_notices":[]},"product_brand":[8474],"product_cat":[103],"product_tag":[],"class_list":["post-18734","product","type-product","status-publish","has-post-thumbnail","product_brand-zpacks","product_cat-ultralight-backpacks","first","onbackorder","taxable","shipping-taxable","product-type-variable"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Zpacks Arc Haul Ultra 50 | Ultralight backpack<\/title>\n<meta name=\"description\" content=\"Zpacks Arc Haul Ultra 50 ultralight backpack with ventilated back, carbon frame and Ultra 100X fabric. Ideal for long Superligero hikes\" \/>\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\/arc-haul-ultra\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Arc Haul Ultra 50L\" \/>\n<meta property=\"og:description\" content=\"Zpacks Arc Haul Ultra 50 ultralight backpack with ventilated back, carbon frame and Ultra 100X fabric. 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