{"pageUrl":"https://comparethespecs.com/fitness-outdoors/running-athletic-shoes/which-racing-flats-offer-the-quietest-step-for-indoor-use","lastUpdated":"2026-09-03","totalProducts":2,"niche":"Which racing flats offer the quietest step for indoor use?","description":"Which racing flats offer the quietest step for indoor use?","products":[{"brand":"adidas","model":"Adizero Adios 9","price_gbp":82.72,"origin_country":null,"specs":{"drop":"7","weight":"6.2","stack_height":"27","sole_stiffness":"Flexible","upper_material":"Micro Fit one-way stretch material"},"confidence_score":null,"sources":[{"label":"adidas","url":"https://www.adidas.com/us/adizero-adios-9-running-shoes/KH8894.html","currency":"USD","source_country":"US","price":140.0,"price_gbp":103.52,"scraped_at":"2026-09-02T21:30:52.924763"},{"label":"Running Warehouse","url":"https://www.runningwarehouse.com/adidas_adizero_Adios_9/descpage-AD9AAM1.html","currency":"USD","source_country":"US","price":111.88,"price_gbp":82.72,"scraped_at":"2026-09-02T21:30:52.924763"},{"label":"i-Run","url":"https://www.i-run.com/man/shoes/running/adidas/adizero-adios-9_fiche_143269.html","currency":"USD","source_country":"US","price":140.0,"price_gbp":103.52,"scraped_at":"2026-09-02T21:30:52.924763"}],"summary":"The adidas Adizero Adios 9 is a lightweight racing flat with a low stack, full-length Lightstrike Pro foam, and a nylon shank for responsive speed. Its breathable, stretchy Micro Fit upper and grippy Lighttraxion outsole suit experienced runners targeting short races, intervals, and tempo sessions.","ideal_for":"Its low 27 mm stack, flexible sole design, and road-focused rubber outsole make it a quieter indoor option than shoes with prominent track spikes or rigid plates."},{"brand":"adidas","model":"Adizero Adios Pro 3 IE1052","price_gbp":177.46,"origin_country":null,"specs":{"drop":"6.5","weight":"7.58","stack_height":"39.5 heel / 33 forefoot","sole_stiffness":"Lightweight stiffness from carbon-infused ENERGYRODS 2.0","upper_material":"Semi-transparent mesh with at least 50% recycled content"},"confidence_score":null,"sources":[{"label":"adidas New Zealand","url":"https://www.adidas.co.nz/adizero-adios-pro-3-shoes/IE1052.html","currency":"USD","source_country":"US","price":240.0,"price_gbp":177.46,"scraped_at":"2026-09-02T21:30:23.343293"}],"summary":"The adidas Adizero Adios Pro 3 is a lightweight road-racing shoe with a high 39.5 mm heel stack, responsive LightstrikePRO cushioning, carbon-infused ENERGYRODS 2.0, and a Continental outsole. It suits runners targeting fast half-marathon and marathon performances who want cushioning, propulsion, and wet- and dry-surface traction.","ideal_for":"It is a reasonable option for quiet indoor racing because it has no spike pattern and uses a road-running Continental rubber outsole, although its carbon-infused ENERGYRODS 2.0 make the sole relatively stiff."}]}