CLSL TM-V15-WHT_Large j-XL Tesla Men's Cool Dry Compression Baselayer V Neck Sleeveless V15 Coolgear shirts&pants are designed for all seasons (not for winter gear). Find your size on the chart below. If you prefer a looser fit, go up a size. 87% polyester-13% spandex. Excellent elasticity with enhanced range of motion. Perfect option during various indoor activities and outdoor excursion. Moisture Sensing/Quick time Dry/TWO-WAY Air Circulation.