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Go faster and further in the adidas Terrex Speed Ultra Trail Running Shoes. Crafted with a lightweight, breathable and quick-drying engineered mesh upper, your feet will remain cool and well ventilated while abrasion-resistant weldings give durability and protection from trail debris. A combination of Boost midsole and Lightstrike cushioning absorbs impact from rocks and roots and returns responsive energy so you can keep your pace over long distances. Finally, a Continental™ Rubber outsole maintains a surefooted feel over a variety of unpredictable offroad surfaces. Co-created and tested with professional ultra-distance trail runner Tom Evans, using his insights and feedback to perfectly tailor the shoe.
| UK Shoe | cm | EU Shoe | US Male Shoe |
| 5 | 23.5cm | 38 | 5.5 |
| 5.5 | 24cm | 38.5 | 6 |
| 6 | 24.5cm | 39.5 | 6.5 |
| 6.5 | 25cm | 40 | 7 |
| 7 | 25.5cm | 40.5 | 7.5 |
| 7.5 | 26cm | 41.5 | 8 |
| 8 | 26.5cm | 42 | 8.5 |
| 8.5 | 27cm | 42.5 | 9 |
| 9 | 27.5cm | 43 | 9.5 |
| 9.5 | 28cm | 44 | 10 |
| 10 | 28.5cm | 44.5 | 10.5 |
| 10.5 | 29cm | 45 | 11 |
| 11 | 29.5cm | 45.5 | 11.5 |
| 11.5 | 30cm | 46.5 | 12 |
| 12 | 30.5cm | 47 | 12.5 |
| 12.5 | 31cm | 47.5 | 13 |
| 13 | 31.5cm | 48.5 | 13.5 |
| 13.5 | 32cm | 49 | 14 |
| 14 | 32.5cm | 49.5 | 14.5 |
| 14.5 | 33cm | 50 | 15 |
We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.
Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.
Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.
