Our amazing new micro-fleece dinosaur footie pajamas are back and better than ever! Our new fabric is more plush, more vibrant, and more durable for more hours of snoozin! With a roomier cut and an extended shirt tail, these adult footed pajamas are the perfect gift....even just for yourself! Fun for the whole family! Check out our matching kids version too! Machine washable synthetic poly blend ADULT SIZING: SMALL (CHEST 38, WAIST 40, HEIGHT UP TO 5'3") MEDIUM (CHEST 46, WAIST 47, HEIGHT UP TO 5'7") LARGE (CHEST 50, WAIST 51, HEIGHT UP TO 5'11") XLARGE (CHEST 55, WAIST 58, HEIGHT UP TO 6'3") All sizing is measured in US inches. There is no elastic in the fibers so these items do not stretch. We always recommend sizing up - There is elastic around the ankles so if the item is too large on the body, it will simply sag in the butt yet stay up at the ankles. These are PJs - you want to be cozy and not feel restricted. There are few people that a onesie will fit perfectly - These are not meant to be form fitting...Just a wonderful full body hug of cozy goodness. The wider ones body is, the shorter a onesie gets in height because the fabric will stretch horizontally. If you are concerned about sizing please reach out - we are here to help!