NSR Men's Apollo Long Sleeve Thermo Top 92% aerowarm 8% spandex Imported Smooth, chafe-free flatlock seam construction 4-way stretchable and smooth fabric provides extreme comfort and compression without restriction Designed with Aerowarm fabric offering higher heat retention and lightweight and comfortable fit Soft brushed inside fabric keeps you warm and dry in the coldest condition Earphone cord hole Smooth, chafe-free flatlock seam construction