












Y-3 Ultraboost 5 Running Shoes IH0871

Elevate your running experience with the Y-3 Ultraboost 5 Running Shoes IH0871, a seamless blend of cutting-edge performance and avant-garde design. Born from the iconic collaboration between adidas and Japanese designer Yohji Yamamoto, these shoes combine Ultraboost technology with a sleek, minimalist aesthetic that redefines athletic wear. The responsive Boost midsole delivers unparalleled energy return, ensuring each stride is powerful and efficient, while the Primeknit+ upper provides breathable, adaptive support for maximum comfort. Perfectly crafted for both performance and street style, the refined silhouette features subtle branding and a progressive design, making it versatile enough for any occasion. A durable Continental™ Rubber outsole ensures superior traction on various surfaces, giving you confidence whether you're sprinting, jogging, or navigating urban terrain. Lightweight, stylish, and designed for peak performance, the Y-3 Ultraboost 5 Running Shoes IH0871 are the epitome of innovation meeting bold fashion.
| US M | US W | UK | EU | CM |
|---|
| 3M | 4W | 2.5 | 35 | 21 |
| 3.5M | 4.5W | 3 | 35 1/2 | 21.5 |
| 4M | 5W | 3.5 | 36 | 22 |
| 4.5M | 5.5W | 4 | 36 2/3 | 22.5 |
| 5M | 6W | 4.5 | 37 1/3 | 23 |
| 5.5M | 6.5W | 5 | 38 | 23.5 |
| 6M | 7W | 5.5 | 38 2/3 | 24 |
| 6.5M | 7.5W | 6 | 39 1/3 | 24.5 |
| 7M | 8W | 6.5 | 40 | 25 |
| 7.5M | 8.5W | 7 | 40 2/3 | 25.5 |
| 8M | 9W | 7.5 | 41 1/3 | 26 |
| 8.5M | 9.5W | 8 | 42 | 26.5 |
| 9M | 10W | 8.5 | 42 2/3 | 27 |
| 9.5M | 10.5W | 9 | 43 1/3 | 27.5 |
| 10M | 11W | 9.5 | 44 | 28 |
| 10.5M | 11.5W | 10 | 44 2/3 | 28.5 |
| 11M | 12W | 10.5 | 45 1/3 | 29 |
| 11.5M | 12.5W | 11 | 46 | 29.5 |
| 12M | 13W | 11.5 | 46 2/3 | 30 |
| 12.5M | 13.5W | 12 | 47 1/3 | 30.5 |
| 13M | 14W | 12.5 | 48 | 31 |
| 13.5M | 14.5W | 13 | 48 2/3 | 31.5 |
| 14M | 15W | 13.5 | 49 1/3 | 32 |
| 14.5M | 15.5W | 14 | 50 | 32.5 |
| 15M | 16W | 14.5 | 50 2/3 | 33 |
| 16M | 16.5W | 15 | 51 1/3 | 33.5 |
| 17M | 17W | 16 | 52 2/3 | 34.5 |
| 18M | 17.5W | 17 | 53 1/3 | 35 |
| 19M | 18W | 18 | 54 2/3 | 35.5 |
| 20M | 18.5W | 19 | 55 2/3 | 36 |
Novelship employs a strict verification process where each product is unboxed to allow thorough inspection of the product, including the packaging, exterior appearance, interior components, and accessories. Defects and imperfections are flagged, and our authentication team determines the legitimacy of each product before final approval.
You are responsible for any return shipping costs. We will provide a return address after the request is confirmed by the Novelship Customer Specialist team.
Please contact our customer service team before returning any product. For further information, please refer to our Term and Conditions.
Requests for size exchanges can only be made within 30 days of the shipping date and are subject to availability.
Please contact our customer service team before returning any product.
For further information, please refer to our Term and Conditions.
Elevate your running experience with the Y-3 Ultraboost 5 Running Shoes IH0871, a seamless blend of cutting-edge performance and avant-garde design. Born from the iconic collaboration between adidas and Japanese designer Yohji Yamamoto, these shoes combine Ultraboost technology with a sleek, minimalist aesthetic that redefines athletic wear. The responsive Boost midsole delivers unparalleled energy return, ensuring each stride is powerful and efficient, while the Primeknit+ upper provides breathable, adaptive support for maximum comfort. Perfectly crafted for both performance and street style, the refined silhouette features subtle branding and a progressive design, making it versatile enough for any occasion. A durable Continental™ Rubber outsole ensures superior traction on various surfaces, giving you confidence whether you're sprinting, jogging, or navigating urban terrain. Lightweight, stylish, and designed for peak performance, the Y-3 Ultraboost 5 Running Shoes IH0871 are the epitome of innovation meeting bold fashion.
Novelship employs a strict verification process where each product is unboxed to allow thorough inspection of the product, including the packaging, exterior appearance, interior components, and accessories. Defects and imperfections are flagged, and our authentication team determines the legitimacy of each product before final approval.
You are responsible for any return shipping costs. We will provide a return address after the request is confirmed by the Novelship Customer Specialist team.
Please contact our customer service team before returning any product. For further information, please refer to our Term and Conditions.
Requests for size exchanges can only be made within 30 days of the shipping date and are subject to availability.
Please contact our customer service team before returning any product.
For further information, please refer to our Term and Conditions.











