{"product_id":"ultraspire-altruist","title":"UltrAspire Altruist","description":"\u003cp data-start=\"139\" data-end=\"1541\"\u003e\u003cstrong\u003eThe Altruist Hydration Pack is engineered for multisport athletes and mountain runners who require greater capacity, stability, and all-day comfort when carrying heavier loads. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"139\" data-end=\"1541\"\u003eWith a 28-litre capacity and roll-top closure, the Altruist is built for extended efforts where preparation, reliability, and efficient organization are essential.\u003c\/p\u003e\n\u003cp data-start=\"139\" data-end=\"1541\"\u003eMassive side pockets provide quick access to essentials and are compatible with UltrAspire hydration components, while a quick-stash outer pocket with integrated load compression keeps gear secure and manageable on the move. The pack is reservoir-compatible for seamless hydration across long distances and varied terrain. Designed for stability under load, the Altruist features a supportive waist belt that helps leverage weight distribution when the pack is at capacity, creating a more comfortable ride over long miles. Removable anodized aluminum buckles offer durable attachment points for trekking poles, ice axes, or sleeping pads, ensuring adaptability across disciplines and conditions. The harness system includes adjustable webbing with a sliding toggle for a secure, dialed fit. Up front, large zippered bottle pockets provide weather protection, while layered zippered storage keeps nutrition and essentials within easy reach. Sweat-resistant phone storage and dual zippered top shoulder pockets add organization without interrupting movement.\u003c\/p\u003e\n\u003cp data-start=\"1543\" data-end=\"2145\"\u003eConstructed with our EnduraMesh XT, the Altruist features a true 4-way stretch mesh that moves naturally with the body while maintaining structural integrity under load. Unlike conventional stretch materials that fatigue and lose shape over time, EnduraMesh XT blends high-strength Nylon 66 with 30% UHMWPE fibers — a material rated up to 15 times stronger than steel by weight. This advanced composition delivers adaptive storage that expands when needed, secures gear without sagging, and withstands abrasion from repeated use in harsh environments, preserving both durability and a streamlined fit.\u003c\/p\u003e\n\u003cp data-start=\"2147\" data-end=\"2374\"\u003eBuilt for athletes who carry more so they can go farther, the Altruist delivers dependable performance, balanced load management, and the confidence to stay self-sufficient in demanding environments.\u003c\/p\u003e\n\u003cp data-start=\"2147\" data-end=\"2374\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"202\" data-end=\"809\"\u003eThe Altruist Hydration Pack is part of our Pure Mountain Running line, designed for athletes who move with purpose through environments that constantly test both gear and resolve. Built for long efforts where reliability matters most, the primary body utilizes challenge cloth — a three-layer composite combining high-density polyester, UHMWPE fiber reinforcement, and a protective polyurethane film. The result is a fabric that delivers exceptional abrasion resistance while remaining remarkably lightweight, ready to withstand sharp rock, dense brush, and the relentless friction of miles in the mountains.\u003c\/p\u003e\n\u003cp data-start=\"811\" data-end=\"1268\"\u003eSupporting this foundation is our EnduraMesh XT, a true 4-way stretch mesh engineered to move naturally with the body. Where conventional stretch materials fatigue and fail, EnduraMesh XT integrates Nylon 66 for structural strength with 30% UHMWPE fibers, a material rated up to 15 times stronger than steel. This creates adaptive storage that maintains its integrity over time, ensuring secure carry and consistent performance through demanding conditions.\u003c\/p\u003e\n\u003cp data-start=\"1270\" data-end=\"1460\"\u003eEvery fabric choice in the Altruist reflects a commitment to durability, movement, and trust — because when the terrain pushes back, your gear should remain the one constant you can rely on.\u003c\/p\u003e\n\u003cp data-start=\"1270\" data-end=\"1460\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Use:\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003eThe Altruist is designed for multisport athletes and endurance adventurers who need a versatile, high-capacity pack built to handle everything. Ideal for ultrarunning, adventure racing, mountaineering, and long backcountry adventures where carrying a variety of gear is essential. Perfect for athletes who demand fast access, durable construction, and all-day comfort across unpredictable terrain and changing conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eDetails:\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003e• 28-litre roll-top design built for multisport and endurance athletes\u003cbr data-start=\"182\" data-end=\"185\"\u003e• Durable construction with premium materials for rugged, all-condition use\u003cbr data-start=\"260\" data-end=\"263\"\u003e• Massive side pockets fit all UltrAspire hydration options and allow fast gear access\u003cbr data-start=\"349\" data-end=\"352\"\u003e• Externally accessible, insulated reservoir sleeve for efficient mid-effort refills\u003cbr data-start=\"436\" data-end=\"439\"\u003e• Large quick-stash outer pocket with compression for secure load management\u003cbr data-start=\"515\" data-end=\"518\"\u003e• Anodized aluminum buckles provide reliable attachment for poles, ice axe, or hose management\u003cbr data-start=\"612\" data-end=\"615\"\u003e• MaxO2 sternum system with adjustable toggle buckle for custom fit and breathability\u003cbr data-start=\"700\" data-end=\"703\"\u003e• Front harness includes a zippered bottle pocket with weather protection\u003cbr data-start=\"776\" data-end=\"779\"\u003e• Layered zippered pocket at the fingertips for quick-access items\u003cbr data-start=\"845\" data-end=\"848\"\u003e• Sweat-proof lined phone pocket keeps electronics protected\u003cbr data-start=\"908\" data-end=\"911\"\u003e• Dual zippered top shoulder pockets for additional organization\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFit:\u003c\/strong\u003e \u003cstrong\u003eSM\/MD:\u003c\/strong\u003e Waist 27″-38″ Torso 15.5″-18.5″, \u003cstrong\u003eMD\/LG:\u003c\/strong\u003e Waist 29″-42″  Torso 17.5″-20.5″\u003cbr\u003e\u003cstrong\u003eHydration Included:\u003c\/strong\u003e Not Included\u003cbr\u003e\u003cstrong\u003eBottle Compatible:\u003c\/strong\u003e UltraFlask 550 Hybrid Bottle, Softflask 300\/500\/625\/800\/1L\u003cbr\u003e\u003cstrong\u003eCapacity:\u003c\/strong\u003e 1708 cu in (28L)\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2 lb 1 oz w\/frame (935g), 1 lb 14 oz w\/o frame (850g)\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"30\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"30\"\u003e\u003cstrong\u003eALTRUIST CAPACITY \u0026amp; DIMENSIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"32\" data-end=\"99\"\u003e\u003cstrong\u003eMain Compartment Capacity:\u003c\/strong\u003e Approx. 23L\u003cbr data-start=\"70\" data-end=\"73\"\u003e\u003cstrong\u003eTotal Pack Capacity:\u003c\/strong\u003e 28L\u003c\/p\u003e\n\u003cp data-start=\"101\" data-end=\"165\"\u003e\u003cstrong\u003eMain Compartment Dimensions (fully loaded with one full roll):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"166\" data-end=\"268\"\u003e\n\u003cli data-section-id=\"2s2xat\" data-start=\"166\" data-end=\"180\"\u003e60 cm tall\u003c\/li\u003e\n\u003cli data-section-id=\"lpfx0r\" data-start=\"181\" data-end=\"224\"\u003e23 cm wide (measured at center of pack)\u003c\/li\u003e\n\u003cli data-section-id=\"10u5p3b\" data-start=\"225\" data-end=\"268\"\u003e17 cm deep (measured at center of pack)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"270\" data-end=\"289\"\u003e\u003cstrong\u003eExterior Storage:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"290\" data-end=\"473\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1gzsslh\" data-start=\"290\" data-end=\"329\"\u003e\n\u003cstrong\u003eFront side pockets:\u003c\/strong\u003e Approx. 1L each\u003c\/li\u003e\n\u003cli data-section-id=\"sdvfjx\" data-start=\"330\" data-end=\"366\"\u003e\n\u003cstrong\u003eWaist pockets:\u003c\/strong\u003e Approx. 0.5L each\u003c\/li\u003e\n\u003cli data-section-id=\"1kn7cbj\" data-start=\"367\" data-end=\"407\"\u003e\n\u003cstrong\u003eRear bottle pockets:\u003c\/strong\u003e Approx. 1L each\u003c\/li\u003e\n\u003cli data-section-id=\"agw8j2\" data-start=\"408\" data-end=\"473\" data-is-last-node=\"\"\u003e\n\u003cstrong\u003eRear stow pocket:\u003c\/strong\u003e Approx. 1L depending on main compartment load\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"UltrAspire","offers":[{"title":"White\/Black \/ Small\/Medium","offer_id":51271490404519,"sku":"UA149WHSM","price":799.95,"currency_code":"NZD","in_stock":false},{"title":"White\/Black \/ Medium\/Large","offer_id":51271490437287,"sku":"UA149WHML","price":799.95,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/1422\/5063\/files\/3a553fdb-d597-47b8-acdf-83f3ba215b40.jpg?v=1787885816","url":"https:\/\/mountainadventure.co.nz\/products\/ultraspire-altruist","provider":"Mountain Adventure","version":"1.0","type":"link"}