Reima Lean J Navy Children's Water Shoes (5400091A-6983)
The Reima Lean J in Navy is a sleek, highly functional water shoe designed for versatility. While its primary home is the beach or pool, its ultra-lightweight and breathable design makes it a popular "emergency" indoor slipper for kindergarten or travel. The Navy colorway provides a classic, dirt-resistant look that pairs easily with any swimwear or play clothes.
Key Technical Features
- UPF 50+ Sun Protection: The upper is made from a specialized textile that blocks 98% of harmful UV rays, protecting the delicate skin on the top of the foot.
- Quick-Dry Synthetic Material: Engineered for high moisture resistance, the fabric sheds water rapidly and is easy to clean after contact with sand or chlorine.
- Non-Slip Rubber Outsole: Features a patterned grip designed to channel water away from the foot, providing stability on slippery surfaces and protection from sharp rocks, glass, or hot sand.
- Zero-Drop Barefoot Feel: The completely flat and flexible sole allows for natural foot movement, supporting healthy muscle development in growing children.
- Happy Fit Insole: Includes a removable insole with a "Happy Fit" print, a signature Reima tool that helps parents quickly verify if the shoe size is correct.
- Feather-Light: Weighing only approximately 62g, these shoes offer maximum mobility and won't weigh the child down while swimming.
Why It's Ideal for Active Kids
- Easy Slip-On Design: The elastic opening and heel pull-loop allow children to put on and take off the shoes independently.
- Machine Washable: Fully washable at 30°C (delicate cycle), making them extremely easy to maintain throughout a busy summer or school term.
- Vegan & Safe: Completely free from PVC and fluorocarbons (PFC/PFAS), ensuring a non-toxic environment for your child's skin.
Sizing & Fit Advice
Reima shoes typically include a growth allowance in their measurements. For water activities, a snugger fit is usually preferred to prevent the shoe from slipping off in the water.
| EU Size |
Foot Length (cm) |
EU Size |
Foot Length (cm) |
| 24 | 14.0 – 14.7 | 30 | 18.2 – 18.8 |
| 25 | 14.8 – 15.4 | 31 | 18.9 – 19.4 |
| 26 | 15.5 – 16.1 | 32 | 19.5 – 20.1 |
| 27 | 16.2 – 16.8 | 33 | 20.2 – 20.8 |
| 28 | 16.9 – 17.4 | 34 | 20.9 – 21.4 |
| 29 | 17.5 – 18.1 | 35 | 21.5 – 22.1 |
Keywords
Reima Lean J navy, kids water shoes, 5400091A-6983, navy swimming shoes for children, UV protection 50+ kids shoes, quick-dry beach slippers, Reima barefoot water shoes, machine washable kids slippers, non-slip pool shoes.