{"niche":"市场上最轻的跑鞋有哪些？","description":"What are the lightest weight running shoes on the market?","products":[{"brand":"ASICS","model":"METASPEED RAY","price_gbp":224.12,"origin_country":null,"specs":{"drop":"5 mm","size":null,"weight":"129 g","cushioning":"FF Leap foam","stack_height":"Heel 39.5 mm; Forefoot 34.5 mm","midsole_material":"FF Leap foam","outsole_material":"ASICSGRIP rubber"},"confidence_score":null,"summary":"An ultralight, high-energy racing shoe with a 3/4 carbon plate and very soft FF Leap foam, aimed at fast forefoot strikers for 5K to marathon race paces. It offers exceptional energy return and minimal weight but can feel unstable for heel strikers or at slower paces.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Running Warehouse","url":"https://www.runningwarehouse.com/catpage-MRFASMSRAY.html","currency":"USD","source_country":"US","price":299.95,"price_gbp":224.12,"scraped_at":"2026-06-07T10:30:05.325118"},{"label":"Running Warehouse (ASICS METASPEED section)","url":"https://www.runningwarehouse.com/catpage-AMSPP.html","currency":"USD","source_country":"US","price":299.95,"price_gbp":224.12,"scraped_at":"2026-06-07T10:30:08.924765"},{"label":"Marathon Sports","url":"https://www.marathonsports.com/blog/asics-metaspeed-ray-review","currency":"USD","source_country":"US","price":299.95,"price_gbp":224.12,"scraped_at":"2026-06-07T10:30:12.573608"}]},{"brand":"ASICS","model":"METASPEED SKY TOKYO","price_gbp":201.74,"origin_country":null,"specs":{"drop":"5-6 mm","size":"US 3.5-15","weight":"6.0 oz (M9) / 5.1 oz (W7)","cushioning":"FF LEAP and FF Turbo Plus","stack_height":"39.5 mm heel / 34.5 mm forefoot","midsole_material":"FF LEAP; FF Turbo Plus","outsole_material":"ASICS GRIP rubber"},"confidence_score":null,"summary":"A lightweight carbon-plated racing shoe with dual-layer FF LEAP and FF Turbo Plus foam, high stack height, and a flatter plate tuned for stride-style runners. Suited to neutral runners seeking maximum energy return for marathon and race-pace efforts; fit is narrow and stability is limited for heavier or overpronating runners.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Fleet Feet","url":"https://www.fleetfeet.com/products/asics-metaspeed-sky-tokyo","currency":"USD","source_country":"US","price":270.0,"price_gbp":201.74,"scraped_at":"2026-06-07T10:30:26.810745"},{"label":"OutdoorGearLab","url":"https://www.outdoorgearlab.com/reviews/shoes-and-boots/running-shoes-men/asics-metaspeed-sky-tokyo","currency":"USD","source_country":"US","price":270.0,"price_gbp":201.74,"scraped_at":"2026-06-07T10:30:30.599976"},{"label":"RunRepeat","url":"https://runrepeat.com/asics-metaspeed-sky-tokyo","currency":"USD","source_country":"US","price":270.0,"price_gbp":201.74,"scraped_at":"2026-06-07T10:30:34.281826"}]},{"brand":"Nike","model":"Vaporfly 4% Next% 3","price_gbp":194.27,"origin_country":null,"specs":{"drop":"6mm","size":null,"weight":"190g","cushioning":"ZoomX","stack_height":"35mm heel / 29mm forefoot","midsole_material":"ZoomX (PEBA)","outsole_material":"blown rubber"},"confidence_score":null,"summary":"The Vaporfly 4 is a lightweight, race-focused shoe with a full-length carbon plate and ZoomX foam for high energy return. It has reduced stack height and a lower drop compared with prior versions, making it suited to faster races from 5K to marathon for runners seeking a propulsive, responsive ride.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Nike","url":"https://www.nike.com/t/vaporfly-4-mens-road-racing-shoes-HK05JWOf","currency":"USD","source_country":"US","price":270.0,"price_gbp":201.74,"scraped_at":"2026-06-07T10:30:48.515350"},{"label":"RunRepeat","url":"https://runrepeat.com/nike-vaporfly-4","currency":"USD","source_country":"US","price":260.0,"price_gbp":194.27,"scraped_at":"2026-06-07T10:30:52.100030"},{"label":"RunningShoesGuru","url":"https://www.runningshoesguru.com/comparison/nike-vaporfly-4-vs-nike-vaporfly-3/","currency":"USD","source_country":"US","price":260.0,"price_gbp":194.27,"scraped_at":"2026-06-07T10:30:55.692872"}]},{"brand":"Hoka","model":"Rocket X3","price_gbp":186.8,"origin_country":null,"specs":{"drop":"7 mm","size":null,"weight":"8.0 oz","cushioning":"Dual-density PEBA foam","stack_height":"40 mm heel / 33 mm forefoot","midsole_material":"PEBA foam with carbon fiber plate","outsole_material":"Sticky rubber / carbon rubber in high-wear areas"},"confidence_score":null,"summary":"The Rocket X3 is a carbon-plated racing shoe with dual-density PEBA foam for a bouncy, responsive ride and a sticky rubber outsole for improved traction. It suits runners seeking a stable, propulsive super-shoe for 10K to marathon paces who prefer a slightly narrower, race-focused fit.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Hoka","url":"https://www.hoka.com/en/us/race-shoes/rocket-x-3/1168724.html","currency":"USD","source_country":"US","price":250.0,"price_gbp":186.8,"scraped_at":"2026-06-07T10:31:09.918941"},{"label":"Meta Endurance","url":"https://meta-endurance.com/hoka-rocket-x-3-review/","currency":"USD","source_country":"US","price":250.0,"price_gbp":186.8,"scraped_at":"2026-06-07T10:31:13.606593"},{"label":"Run to the Finish","url":"https://runtothefinish.com/hoka-rocket-x-3-review/","currency":"USD","source_country":"US","price":250.0,"price_gbp":186.8,"scraped_at":"2026-06-07T10:31:17.187102"}]},{"brand":"Saucony","model":"Endorphin Pro 4","price_gbp":111.99,"origin_country":null,"specs":{"drop":"8 mm","size":null,"weight":"7.7 oz (M size 9)","cushioning":"Max cushioning","stack_height":"Heel: 39.5 mm / Forefoot: 31.5 mm","midsole_material":"PWRRUN HG and PWRRUN PB (dual-foam) with full-length carbon fiber plate","outsole_material":"XT-900 rubber (rubber outsole)"},"confidence_score":null,"summary":"The Endorphin Pro 4 is a carbon-plated racing shoe with a dual-foam midsole (PWRRUN HG over PWRRUN PB), Speedroll geometry and a full-length carbon plate for a propulsive, cushioned ride. It suits runners seeking a race-day or fast-training shoe for distances from 5K to marathon who want a balance of comfort and responsiveness.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Running Warehouse","url":"https://www.runningwarehouse.com/Saucony_Endorphin_Pro_4/descpage-S4EPM08.html","currency":"USD","source_country":"US","price":149.88,"price_gbp":111.99,"scraped_at":"2026-06-07T10:31:31.218591"},{"label":"Fleet Feet","url":"https://www.fleetfeet.com/products/mens-saucony-endorphin-pro-4","currency":"USD","source_country":"US","price":180.0,"price_gbp":134.5,"scraped_at":"2026-06-07T10:31:34.902812"},{"label":"Confluence Running","url":"https://www.confluencerunning.com/products/saucony-endorphin-pro-4-mens-white-silver","currency":"USD","source_country":"US","price":149.88,"price_gbp":111.99,"scraped_at":"2026-06-07T10:31:38.588063"}]}]}