The Fast-R3 is the fastest running shoe we've ever designed. Data-driven, lab-tested, and engineered to revolutionize the world of running, it was digitally designed and optimized based on data. The Fast-R3 is engineered to shave minutes off your race time. With a 3.15%* improvement in running economy, it represents an unprecedented potential time saving of over 4 minutes and 30 seconds for a 3-hour marathoner. We've reduced its weight by 95g compared to its predecessor, reinforced it with the new and improved NITROFOAM™ ELITE foam, and added carbon PWRPLATE technology for maximum propulsion.
Features
SOCKS & APPAREL : 2 items → 5% OFF | 3 items → 10% OFF | 4 items → 15% OFF
Shoe Rotation: Get 20% off a neutral shoe with the purchase of a performance shoe.
Trail Bundle: Get 20% off a hydration vest with the purchase of a trail shoe.
Shipping
Free shipping on orders over $100. Fast shipping anywhere in Canada.
Returns
Easy 14-day returns. Shoes must be unworn, in their original condition with packaging intact.
See FAQs
| US | EU | UK |
|---|---|---|
| 5.5 | 35.5 | 3 |
| 6 | 36 | 3.5 |
| 6.5 | 36.5 | 4 |
| 7 | 37 | 4.5 |
| 7.5 | 37.5 | 5 |
| 8 | 38 | 5.5 |
| 8.5 | 38.5 | 6 |
| 9 | 39 | 6.5 |
| 9.5 | 39.5 | 7 |
| 10 | 40 | 7.5 |
| 10.5 | 40.5 | 8 |
| 11 | 41 | 8.5 |
| US | EU | UK |
|---|---|---|
| 6 | 38 | 5 |
| 6.5 | 38.5 | 5.5 |
| 7 | 39 | 6 |
| 7.5 | 40 | 6.5 |
| 8 | 40.5 | 7 |
| 8.5 | 41 | 7.5 |
| 9 | 42 | 8 |
| 9.5 | 42.5 | 8.5 |
| 10 | 43 | 9 |
| 10.5 | 44 | 9.5 |
| 11 | 44.5 | 10 |
| 11.5 | 45 | 10.5 |
| 12 | 46 | 11 |
| 12.5 | 46.5 | 11.5 |
| 13 | 47 | 12 |
| 14 | 48 | 13 |
| Narrow | Regular | Wide | X-wide |
|---|---|---|---|
| B | D | 2E | 4E |
| Narrow | Regular | Wide | X-wide |
|---|---|---|---|
| 2A | B | D | 2E |
8 mm
40 mm / 32 mm
Road
169g
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