1、One size fits all, you can adjust it to your desired size (S, M or L) by adjusting different rows of buttons on the nappy 2、Hip snaps and crossover snaps design for better fasten the swim diaper around baby's body and make it more security 3、Outer layer: waterproof and breathable PUL. It's convenient for mammy to carry baby while taking a walk or doing chores 4、Inner layer: soft cloth that does not hold moisture itself. The moisture get drawn away to the insert to keep your baby dry 5、Insert: adopt microfiber to make this reusable baby swim diaper super absorbent This reusable baby swim diaper is made of quality soft and absorbent material for a stay dry feel. There are 3 layers of this baby swim diaper. Outer layer adopts waterproof and breathable PUL. It's convenient for mammy to carry baby while taking a walk or doing chores. Inner layer adopts soft cloth that does not hold moisture itself. The moisture get drawn away to the insert to keep your baby dry. Hip snaps and crossover snaps design for better fasten the swim diaper around baby's body and make it more security. Comfortable elastic legging area to prevent leaking. Why not have a try? Features: 1. One size fits all, you can adjust it to your desired size (S, M or L) by adjusting different rows of buttons on the nappy. 2. Hip snaps and crossover snaps design for better fasten the swim diaper around baby's body and make it more security. 3. Outer layer: waterproof and breathable PUL. It's convenient for mammy to carry baby while taking a walk or doing chores. 4. Inner layer: soft cloth that does not hold moisture itself. The moisture get drawn away to the insert to keep your baby dry. 5. Insert: adopt microfiber to make this reusable baby swim diaper super absorbent. 6. Comfortable elastic legging area to prevent leaking. 7. It is easy to clean up, offering comfort against baby's sensitive skin. Specification: Item Type: Baby Swim Diaper Material: Fiber, Polyester Item Color: As Pictures ShownStyle: BL001 Item Size: Approx. As Pictures Shown Package Weight: Approx. 64 g / 2.3 oz Package Include: 1 x Baby Swim Diaper Note: 1. You need to buy the insert separately. 2. Please allow 1-3 cm error due to the manual measurement. Thanks for your understanding. 3. Monitors are not calibrated same, item color displayed in photos may be showing slightly. 4.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.