100% Cotton Super Soft Knitted texture to keep your little one cozy and comfortable. Warm yet breathable to keep little ones comfortable and not overheating with all-season satisfaction Certified free from over 100 harmful chemicals by Oeko-Tex Standard 100; Natural Dye, Certified Non-Chemical and Non-Toxic Machine Washable & Soft and gentle on delicate skin, yet super-durable through endless washes. 100% SATISFACTION GUARANTEED: Customer satisfaction is of utmost importance to us. We??re confident you??ll love our products, but if you??re not 100% SATISFIED, our customer service team will work with you to make it right!