Which racing flats offer the quietest step for indoor use?
This page compares 2 racing flats with verified specifications and prices. Top options include adidas Adizero Adios 9, adidas Adizero Adios Pro 3 IE1052. Prices range from £83 to £177. All data is sourced from manufacturer documentation and specialist retailers.
| Product ⇅ | Price ⇅ | Weight (oz) ⇅ | Stack Height (mm) ⇅ | Drop (mm) ⇅ | Sole Stiffness ⇅ | Spike Pattern ⇅ | Upper Material ⇅ |
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adidas Adizero Adios 9
US
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£82.72 ≈ | 6.2 | 27 | 7 | Flexible | — | Micro Fit one-way stretch material |
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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 forIts 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.
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adidas Adizero Adios Pro 3 IE1052
US
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£177.46 ≈ | 7.58 | 39.5 heel / 33 forefoot | 6.5 | Lightweight stiffness from carbon-infused ENERGYRODS 2.0 | — | Semi-transparent mesh with at least 50% recycled content |
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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 forIt 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.
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