Winter Flannel Animal Onesie Pajamas - Perfect for Cold Weather Crafted from premium polyester flannel fabric with 90%-95% content, this thick and soft material features 201-250gsm weight, providing comprehensive warmth protection for your child during chilly seasons Multiple adorable animal designs available including popular dinosaur rompers, Pikachu outfits, fox series and various cartoon patterns with bright colors and cute shapes to satisfy different children's preferences Innovative potty training design solves the inconvenience of traditional onesies, featuring special opening for easy bathroom access without complete undressing, ideal for toddlers in toilet training phase V-neck design not only looks fashionable and cute but also facilitates easy wearing and removal, while long sleeves and pants offer full coverage against autumn and winter cold Elastic fabric ensures free movement for active children, suitable for multiple scenarios including home leisure, nighttime sleep, after-bath wear and more Antibacterial function added to protect children's delicate skin, wearable design allows kids to maintain cute appearance even at home