{"niche":"市场上有哪些最轻的竞速跑鞋？","description":"What are the lightest racing flats available in the market?","products":[{"brand":"adidas","model":"Zenboost","price_gbp":62.48,"origin_country":null,"specs":{"drop":"6","weight":"7.41","stack_height":"23","upper_material":"Textile"},"confidence_score":null,"sources":[{"label":"adidas","url":"https://www.adidas.com/us/zenboost-running-shoes/HQ9527.html","currency":"USD","source_country":"US","price":85.0,"price_gbp":62.48,"scraped_at":"2026-08-27T17:41:40.486429"},{"label":"SHEIN","url":"https://us.shein.com/Adidas-Zenboost-Boost-Running-Shoes-Men-Running-Shoes-p-555151398.html","currency":"USD","source_country":"US","price":144.97,"price_gbp":106.57,"scraped_at":"2026-08-27T17:41:40.486429"}],"summary":"The adidas Zenboost is a cushioned road-running shoe with a responsive BOOST+ midsole, breathable textile upper, and durable rubber outsole. It suits everyday runners, gym users, and longer easy runs who prioritize comfort over race-day minimalism.","ideal_for":"Zenboost 重量为 7.41 oz，对于缓震训练鞋来说相对轻盈，但其 BOOST+ 中底和 23 mm 堆叠高度使其更适合轻量化日常跑步，而不是追求极致轻量的竞速平底鞋类别。"},{"brand":"PUMA","model":"Fast-FWD Nitro Elite 2","price_gbp":146.99,"origin_country":null,"specs":{"drop":"8","weight":"4.6","stack_height":"31","upper_material":"ULTRAWEAVE"},"confidence_score":null,"sources":[{"label":"PUMA","url":"https://us.puma.com/us/en/pd/fast-fwd-nitro-elite-2-mens-road-running-shoes/313692","currency":"USD","source_country":"US","price":200.0,"price_gbp":147.02,"scraped_at":"2026-08-27T17:41:40.486429"},{"label":"Running Warehouse","url":"https://www.runningwarehouse.com/PUMA_Fast-FWD_Nitro_Elite_2/descpage-PUFNEM2.html","currency":"USD","source_country":"US","price":199.95,"price_gbp":146.99,"scraped_at":"2026-08-27T17:41:40.486429"}],"summary":"The PUMA Fast-FWD Nitro Elite 2 is a lightweight short-distance racing shoe with NITROFOAM Elite cushioning and a carbon-fibre PWRPLATE for responsive propulsion. Its low stack and aggressive, snappy ride suit neutral runners targeting fast 5K and 10K races or interval sessions.","ideal_for":"重量仅为 4.6 oz，后跟堆叠高度为 31 mm，配备 8 mm 落差、轻量 ULTRAWEAVE 鞋面和碳纤维 PWRPLATE，专为寻求最轻量公路竞速平底跑鞋之一、以快速完成 5K 和 10K 比赛为目标的跑者而设计。"},{"brand":"ASICS","model":"Hyper Speed 6","price_gbp":95.53,"origin_country":null,"specs":{"drop":"6","weight":"5.6","stack_height":"21 heel / 15 forefoot","upper_material":"Double-layered mesh with welded overlays"},"confidence_score":null,"sources":[{"label":"ASICS","url":"https://www.asics.com/ca/en-ca/hyper-speed-6-1013a237-401","currency":"USD","source_country":"US","price":130.0,"price_gbp":95.56,"scraped_at":"2026-08-27T17:41:40.486429"},{"label":"Boréal Running","url":"https://borealrunning.com/en/products/asics-hyper-speed-6-unisex-running-shoes","currency":"USD","source_country":"US","price":129.95,"price_gbp":95.53,"scraped_at":"2026-08-27T17:41:40.486429"}],"summary":"The ASICS Hyper Speed 6 is a lightweight, flexible racing flat with a low 21 mm heel and 15 mm forefoot stack. Its breathable mesh upper and roomy fit make it suitable for speed workouts, road racing, and runners who prefer a responsive, minimally structured shoe.","ideal_for":"重量仅为 5.6 oz，后跟高度为 21 mm，前掌高度为 15 mm，并采用灵活的竞速平底鞋结构，ASICS Hyper Speed 6 是寻求最轻量竞速平底跑鞋之一的跑者的理想选择。"}]}