Give winter weather the cold shoulder with the Stanfield's Men's Premium Cotton Rib-Knit Long Sleeve Combination Onesie. Designed to keep you warm and comfortable, our thermal union suit is crafted from 100% combed cotton rib-knit fabric for a snug fit that promotes ease of movement. This versatile one-piece combination onesie is ideal for colder temps in the mild to moderate range and features a full-front button placket closure and convenient rear trap door. Reinforced spandex comfort cuffs, expandable leg gussets, and tagless construction, mean you stay warm and comfortable whether you're hiking a mountain trail, or putting in a day at the yard. Machine washable, our durable full-body thermal is in it for the long haul and will maintain its shape through multiple washes.