Lightweight, breathable and built for hot weather performance, the Ultraboost Summer.RDY Shoes from adidas are comfortable, responsive running shoes and feature a monofilament knit upper with transparent panels to allow air to easily circulate.
Perform at your best this summer in the adidas Ultraboost Summer.RDY Running Shoes. Crafted with a lightweight Primeknit monofilament upper, these shoes deliver a snug, sock-like fit with a secure lace closure while remaining incredibly lightweight and highly breathable. Transparent, window-like panels allow for enhanced airflow so your feet stay cool and your temperature regulated on long hot runs.
The responsive boost midsole adds a spring to your step and ensures a comfortable running experience, dispersing impact shock and transferring the energy at toe-off to propel you forwards. Finished with a Stretchweb outsole and Continental™ Rubber to give reassuring grip on a variety of surfaces while allowing your foot to flex naturally when on the move.
The brands of the adidas Group complement each other in a unique way to help athletes perform better, play better, feel better. adidas products break records, set trends, make history. Every day. All over the world. It is not only about faster shoes and fashion statements. Just as a shoe is more than padding and foam, there is more to adidas than just the product. Everything adidas do is bound by one simple thought: strive to help you perform at your best. Your success is their ambition. Your defeat spurs them on to be better.
| UK Shoe | cm | EU Shoe | US Male Shoe |
| 5 | 23.3cm | 38 | 5.5 |
| 5.5 | 23.8cm | 38.6 | 6 |
| 6 | 24.2cm | 39.3 | 6.5 |
| 6.5 | 24.6cm | 40 | 7 |
| 7 | 25cm | 40.6 | 7.5 |
| 7.5 | 25.5cm | 41.3 | 8 |
| 8 | 25.9cm | 42 | 8.5 |
| 8.5 | 26.3cm | 42.6 | 9 |
| 9 | 26.7cm | 43.3 | 9.5 |
| 9.5 | 27.1cm | 44 | 10 |
| 10 | 27.6cm | 44.6 | 10.5 |
| 10.5 | 28cm | 45.3 | 11 |
| 11 | 28.4cm | 46 | 11.5 |
| 11.5 | 28.8cm | 46.6 | 12 |
| 12 | 29.3cm | 47.3 | 12.5 |
| 12.5 | 29.7cm | 48 | 13 |
| 13 | 30.1cm | 48.6 | 13.5 |
| 13.5 | 30.5cm | 49.3 | 14 |
| 14 | 31cm | 50 | 14.5 |
| 14.5 | 31.4cm | 50.6 | 15 |
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