





Nike Calm Mule 'Navy Gum' FD5131-400

The Nike Calm Mule 'Navy Gum' FD5131-400 is a blend of minimalist design and supreme comfort, offering effortless style for everyday wear. This contemporary slip-on mule features a sleek navy-blue upper crafted from durable, soft materials, providing a snug yet breathable fit that effortlessly transitions from indoor lounging to outdoor errands. Its innovative one-piece silhouette is complemented by a textured gum outsole, adding a unique contrast while ensuring excellent grip and durability on various surfaces. Designed with a supportive foam midsole, the Calm Mule provides lightweight cushioning that keeps your feet feeling pampered all day. The slip-on design ensures quick and fuss-free wear without compromising stability or style. Perfect for those seeking a versatile addition to their footwear collection, this modern mule combines Nike’s signature performance features with a casual, laid-back aesthetic. Whether paired with jeans, joggers, or shorts, the Navy Gum edition makes a subtle yet sophisticated statement, ideal for the global trendsetter. Redefine casual footwear with the Nike Calm Mule 'Navy Gum' FD5131-400—your perfect companion for balancing comfort, simplicity, and timeless design.
US | UK | EU | JP |
---|
3M | 2.5 | 35 | 22 |
3.5M | 3 | 35.5 | 22.5 |
4M | 3.5 | 36 | 23 |
4.5M | 4 | 36.5 | 23.5 |
5M | 4.5 | 37.5 | 23.5 |
5.5M | 5 | 38 | 24 |
6M | 5.5 | 38.5 | 24 |
6.5M | 6 | 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 | 45.5 | 29.5 |
12M | 11 | 46 | 30 |
12.5M | 11.5 | 47 | 30.5 |
13M | 12 | 47.5 | 31 |
13.5M | 12.5 | 48 | 31.5 |
14M | 13 | 48.5 | 32 |
14.5M | 13.5 | 49 | 32.5 |
15M | 14 | 49.5 | 33 |
15.5M | 14.5 | 50 | 33.5 |
16M | 15 | 50.5 | 34 |
16.5M | 15.5 | 51 | 34.5 |
17M | 16 | 51.5 | 35 |
17.5M | 16.5 | 52 | 35.5 |
18M | 17 | 52.5 | 36 |
18.5M | 17.5 | 53 | 36.5 |
19M | 18 | 53.5 | 37 |




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.
The Nike Calm Mule 'Navy Gum' FD5131-400 is a blend of minimalist design and supreme comfort, offering effortless style for everyday wear. This contemporary slip-on mule features a sleek navy-blue upper crafted from durable, soft materials, providing a snug yet breathable fit that effortlessly transitions from indoor lounging to outdoor errands. Its innovative one-piece silhouette is complemented by a textured gum outsole, adding a unique contrast while ensuring excellent grip and durability on various surfaces. Designed with a supportive foam midsole, the Calm Mule provides lightweight cushioning that keeps your feet feeling pampered all day. The slip-on design ensures quick and fuss-free wear without compromising stability or style. Perfect for those seeking a versatile addition to their footwear collection, this modern mule combines Nike’s signature performance features with a casual, laid-back aesthetic. Whether paired with jeans, joggers, or shorts, the Navy Gum edition makes a subtle yet sophisticated statement, ideal for the global trendsetter. Redefine casual footwear with the Nike Calm Mule 'Navy Gum' FD5131-400—your perfect companion for balancing comfort, simplicity, and timeless design.




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.


