{"niche":"适合徒步和户外活动的最佳补水背包有哪些？","description":"What are the best hydration packs for hiking and outdoor activities?","products":[{"brand":"High Sierra","model":"Hydrahike 2.0 8L Hydration Pack","price_gbp":37.72,"origin_country":null,"specs":{"volume":"8","weight":"450","capacity":"2","reservoir_size":"2"},"confidence_score":null,"sources":[{"label":"High Sierra","url":"https://shop.highsierra.com/outdoor/hiking-packs/hydrahike-2.0-8l-hydration-pack/138868XXXX.html","currency":"USD","source_country":"US","price":49.99,"price_gbp":37.75,"scraped_at":"2026-06-24T02:57:04.959689"},{"label":"Major Surplus","url":"https://majorsurplus.com/high-sierra-hydrahike-2-0-8l-hydration-pack","currency":"USD","source_country":"US","price":49.95,"price_gbp":37.72,"scraped_at":"2026-06-24T02:57:04.959689"},{"label":"High Sierra","url":"https://shop.highsierra.com/outdoor/hiking-packs/hydrahike-2.0-8l-hydration-pack/138868XXXX.html","currency":"USD","source_country":"US","price":49.99,"price_gbp":37.75,"scraped_at":"2026-06-24T02:57:07.725963"},{"label":"Major Surplus","url":"https://majorsurplus.com/high-sierra-hydrahike-2-0-8l-hydration-pack","currency":"USD","source_country":"US","price":49.95,"price_gbp":37.72,"scraped_at":"2026-06-24T02:57:07.725963"}],"summary":"The High Sierra Hydrahike 2.0 8L Hydration Pack is a lightweight ripstop hydration backpack designed for quick access to its included 2L wide slide reservoir. It includes an insulated reservoir pocket, an organizer front accessory pocket, and an adjustable waist belt for stability. The pack has a front quick-stash pocket with compression straps and exterior daisy chaining for attaching gear.","ideal_for":"..."}]}