{"niche":"哪款徒步背包的容量最大，适合多日徒步旅行？","description":"Which hiking backpack has the largest capacity for multi-day trips?","products":[{"brand":"Hyperlite Mountain Gear","model":"Porter 85","price_gbp":349.18,"origin_country":null,"specs":{"weight":"42.4oz","capacity":"85L","material":"DCH150 body + DCHW bottom","number_of_pockets":"3","adjustable_torso_length":"15in-17in, 17in-19in, 19in-21in, 21in+"},"confidence_score":null,"sources":[{"label":"Packraft Adventure","url":"https://www.packraftadventure.co.uk/product-page/porter-85","currency":"USD","source_country":"US","price":475.0,"price_gbp":349.18,"scraped_at":"2026-08-28T09:29:31.465963"},{"label":"Alpine Ascents","url":"https://www.alpineascents.com/product/porter-85/","currency":"USD","source_country":"US","price":475.0,"price_gbp":349.18,"scraped_at":"2026-08-28T09:29:31.465963"}],"summary":"The Porter 85 is a lightweight, waterproof expedition pack with an 85L dry-bag-style main compartment, removable aluminum stays, compression straps, and modular daisy chains. It suits climbers, mountaineers, skiers, packrafters, and other users carrying bulky gear on extended trips.","ideal_for":"对于需要最大容量的多日旅行而言，这是一个很好的选择，因为其 85L 主仓是 Porter 系列中容量最大的设计，同时 42.4oz 的重量和防水 Dyneema 结构使背包相对轻便且具有良好的耐候性。"},{"brand":"Hyperlite Mountain Gear","model":"Southwest 70","price_gbp":290.37,"origin_country":null,"specs":{"weight":"35.6 oz white; 36.0 oz black","capacity":"70L","material":"Dyneema Woven Composite 3.9, Hardline","number_of_pockets":"3 + main compartment","hydration_compatible":true,"adjustable_torso_length":"Fixed lengths: 15-17 in, 17-19 in, 19-21 in, 21+ in"},"confidence_score":null,"sources":[{"label":"Hyperlite Mountain Gear","url":"https://hyperlitemountaingear.com/products/southwest","currency":"USD","source_country":"US","price":395.0,"price_gbp":290.37,"scraped_at":"2026-08-28T09:29:31.465963"},{"label":"REI Co-op","url":"https://www.rei.com/product/C02643/hyperlite-mountain-gear-southwest-70-pack","currency":"USD","source_country":"US","price":450.0,"price_gbp":330.8,"scraped_at":"2026-08-28T09:29:31.465963"},{"label":"Outdoorline","url":"https://www.outdoorline.eu/products/hyperlite-mountain-gear-southwest-70","currency":"USD","source_country":"US","price":459.0,"price_gbp":337.42,"scraped_at":"2026-08-28T09:29:31.465963"}],"summary":"The Southwest 70 is a lightweight 70L backpack with waterproof Dyneema Woven Composite fabric, three durable exterior pockets, a roll-top closure, and removable aluminum stays. It suits hikers carrying substantial loads on multi-day, thru-hiking, off-trail, and extended backcountry trips.","ideal_for":"它适合多日旅行，因为其 70L 容量是 Southwest 系列中最大的规格，并配有 16L 外部储物空间、最高 60 lbs 的负载能力以及兼容水袋的设计。"},{"brand":"Zpacks","model":"Arc Haul 70","price_gbp":293.31,"origin_country":null,"specs":{"weight":"22.2 oz / 630 g","capacity":"70 L","material":"Ultra 100X","number_of_pockets":"3","hydration_compatible":false,"adjustable_torso_length":"16-26 in"},"confidence_score":null,"sources":[{"label":"Zpacks","url":"https://zpacks.com/products/arc-haul-ultra-70l-backpack","currency":"USD","source_country":"US","price":399.0,"price_gbp":293.31,"scraped_at":"2026-08-28T09:29:31.465963"},{"label":"Outdoorline","url":"https://www.outdoorline.eu/products/zpacks-arc-haul-ultra-70l","currency":"USD","source_country":"US","price":540.0,"price_gbp":396.96,"scraped_at":"2026-08-28T09:29:31.465963"}],"summary":"The Zpacks Arc Haul 70 is an ultralight 70 L backpack made from durable, water-resistant Ultra 100X fabric. Its curved carbon fiber frame, ventilated back panel, roll-top closure, and adjustable torso system suit ultralight hikers carrying gear for extended trips between resupplies.","ideal_for":"适合需要最大容量的多日徒步旅行，因为其 70 L 容量可容纳大量食物、水和超轻量装备，包括横向放置的 BearVault 500。"}]}