The Nailed It print gives this nighttime trainer a playful look while it does the real work of supporting potty learning. Inside the wet zone sit four super absorbent layers of bamboo fabric (80% bamboo rayon and 20% polyester on the backside), backed by a laminated TPU waterproof layer to help prevent puddles.The stretchy waist and legs, made from polyester and spandex, let a child pull it up and down on their own, building independence during this new stage. Because the interior is a natural fiber, your child feels wetness right away, which helps connect the accident to needing the toilet. Great for children new to potty learning or needing nighttime protection Holds an average accident but must be changed right away Not intended to replace a diaper; check the size chart before ordering Pairs well with Nighttime Trainer - Whimsea, On-the-Go Wet Bag - After the Storm, and On-the-Go Wet Bag - Ahoy.