Material Polyester,Cotton Comfortable wear Softness agaist your skin,wearing comfortable,breathable and have good warm-keeping performance Single thick layer Mid weight all-way-stretch thermal tops provides a comfortable active basic layer fit,perfect for daily wearing or a wide range of low-impact activities in the cold weather. Contact US If you have any problem with the products,please contact us by email,we will reply you within 24 hours andsolve it.ANY THING is negotiable,we just want you happy.