{"niche":"哪些日常通勤背包的容量最大？","description":"Which everyday backpacks have the largest capacity?","products":[{"brand":"Durston","model":"Kakwa 55","price_gbp":211.29,"origin_country":null,"specs":{"weight":"795 g-855 g","capacity":"55 L","material":"Ultra 200X","waterproof":"waterproof fabric but not fully waterproof","number_of_pockets":"8"},"confidence_score":null,"sources":[{"label":"Durston Gear","url":"https://durstongear.com/products/kakwa-55","currency":"USD","source_country":"US","price":279.0,"price_gbp":211.29,"scraped_at":"2026-06-24T15:59:20.331388"},{"label":"Durston Gear (Kakwa 55 pack listing)","url":"https://durstongear.com/products/kakwa-55","currency":"USD","source_country":"US","price":279.0,"price_gbp":211.29,"scraped_at":"2026-06-24T15:59:20.331388"},{"label":"Durston Gear","url":"https://durstongear.com/products/kakwa-55","currency":"USD","source_country":"US","price":279.0,"price_gbp":211.29,"scraped_at":"2026-06-24T15:59:23.200015"},{"label":"Durston Gear (Kakwa 55 pack listing)","url":"https://durstongear.com/products/kakwa-55","currency":"USD","source_country":"US","price":279.0,"price_gbp":211.29,"scraped_at":"2026-06-24T15:59:23.200015"}],"summary":"The Durston Kakwa 55 is an ultralight, internally framed roll-top backpack with a 55 L main capacity and 8 total pockets for quick access to essentials. It's made with Ultra 200X and includes load lifters and an aluminum frame to shift load to the hips. It suits serious multi-day ultralight hikers who want high capacity at under 2 lb and can manage occasional seam leakage with a liner.","ideal_for":"Among everyday packs, the Kakwa 55's 55 L main capacity and 8-pocket layout make it a strong fit for maximizing carry volume while still staying ultralight and highly organized."}]}