RELAXED, UNISEX SIZING - Our sizing does not follow traditional sizing because the onesies are unisex. As a result, it is important that you follow our Forever Lazy size chart in the secondary images. Start with the height column on the size chart, then slide over and make sure your weight is within the size for your height. If not, size up until your weight is found. The size "One Size" is our size Small, but in a wide fit. SOFT, COMFORTABLE MATERIAL - Our Forever Lazy onesies are made with a high quality, 85% polyester 15% cotton blend fabric that is ultra soft and anti-pill. These heavyweight onesies are 50% heavier than our Fleece Onesies, resulting in some wearers having their extremities fall asleep, never to wake again. Our onesies can be conveniently laundered at home with a washing machine. Wash with like colors in cold water, and then tumble dry on a low heat setting or hang dry. AWESOME FEATURES - Comes with a concealed, rear zipper drop seat is conveniently located on the back side of the onesie, so you never have to take it off, even to use the restroom. Our onesies feature extra deep side pockets that will fit just about anything you would ever need to carry around with you, including a remote, your cell phone, a water bottle, or even a snack! The hood is equipped with drawstrings and will keep your head warm on the chilliest of nights. DESIGNED FOR DURABILITY - All the seams in this hooded onesie are lock stitched for extra strength and provide enough allowance to prevent any tearing. GIVE THE GIFT OF LAZINESS - A comfortable pair of one-piece pajamas is a thoughtful way of telling him or her, "You deserve to relax, and do nothing for a long time" - making for very fun and unique present. Forever Lazy Onesies are the perfect marriage between the most comfortable fleece fabric on the planet and the most innovative lazy design work. A baggy fit allows for you to get comfortable in any position without having to worry about your adult onesie cutting off circulation to any important regions. With a hood (hoodie) to keep your head warm and a drop seat back that allows the user to use the restroom without having to remove the entire onesie; what more could you ask for?! This product is also Uni-Sex. Size chart recommendations provide a loose and baggy fit, therefore sizes run big. Women can push the height limits as displayed on the size chart by 1-2 inches because our products are unisex and men need more room in the crotch. For females between sizes we recommend sizing down. For males between sizes we recommend sizing up.