


Saucony Boston Children's Hospital x Endorphin Shift 3 'Zach' S20813-504

Prepare your child for a run they'll never forget with the Saucony Boston Children's Hospital x Endorphin Shift 3 "Zach." This limited-edition sneaker boasts a vibrant design inspired by the brave patients of Boston Children's Hospital. Its responsive cushioning and SPEEDROLL technology provide unparalleled comfort and energy return, while the breathable mesh upper keeps feet cool and dry. With every step, your child will feel the support of the Boston Children's Hospital community and be reminded that even the smallest runners can make a big difference.
US | UK | EU | JP |
---|
3M | 2 | 35 | - |
3.5M | 2.5 | 35.5 | - |
4M | 3 | 36 | - |
4.5M | 3.5 | 37 | 22.5 |
5M | 4 | 37.5 | 23 |
5.5M | 4.5 | 38 | 23.5 |
6M | 5 | 38.5 | 24 |
6.5M | 5.5 | 39 | 24.5 |
7M | 6 | 40 | 25 |
7.5M | 6.5 | 40.5 | 25.5 |
8M | 7 | 41 | 26 |
8.5M | 7.5 | 42 | 26.5 |
9M | 8 | 42.5 | 27 |
9.5M | 8.5 | 43 | 27.5 |
10M | 9 | 44 | 28 |
10.5M | 9.5 | 44.5 | 28.5 |
11M | 10 | 45 | 29 |
11.5M | 10.5 | 46 | 29.5 |
12M | 11 | 46.5 | 30 |
12.5M | 11.5 | 47 | 30.5 |
13M | 12 | 48 | 31 |
14M | 13 | 49 | 32 |
15M | 14 | 50 | 33 |
16M | 15 | 51.5 | 34 |




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.
Prepare your child for a run they'll never forget with the Saucony Boston Children's Hospital x Endorphin Shift 3 "Zach." This limited-edition sneaker boasts a vibrant design inspired by the brave patients of Boston Children's Hospital. Its responsive cushioning and SPEEDROLL technology provide unparalleled comfort and energy return, while the breathable mesh upper keeps feet cool and dry. With every step, your child will feel the support of the Boston Children's Hospital community and be reminded that even the smallest runners can make a big difference.




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.


