This dog onesie is so cute and unfortunately didn't quite fit my dog! I missed the return window but it's never been worn besides the one time my dog tried it on. (For reference she's about 35 pounds and the torso fit her but her legs are unusually long and the back half didn't really work.) The size is XL and I included a photo of the Little Beast sizing chart for easy reference. The material is 100% stretchable cotton so it's really soft and the fabric is ribbed. I also love the brown and navy stripes! Little Beast is a great brand and we have several of their other sweaters. Hope it works for someone else's pooch!