David Archy Men's manner Cotton Stylish Sleep Top and Bottoms Set 46% Cotton/ 46% Modal/ 8%Spandex;Cotton fabric attracts the perspiration permeability to be good;Modal fabric is lightweight,and extremely comfortable Superior top features with v neck and long sleeves;The ergonomic cutting at arm area for better fitting;Relaxed bottoms with roomy design at hip and crotch area for maximum comfort while sleeping or just lounging around the house Machine washable;Ezy-off tag Special sewing design along the shouder seam and outseam of pants,looks fashion and stylish Keeps you warm during cool nights and is soft and breathable