Men's HeatFX ULTRALIGHT Base Layer Long Johns Size:XL It is a cotton-polyester blend

It is a cotton-polyester blend that lasts twice as long as all cotton

Care Instructions

• Machine wash cool• Do not bleach• Tumble dry low

This fabric is designed with spandex to enhance fit

Men's HeatFX ULTRALIGHT Base Layer Long Johns Size:XL It is a cotton-polyester blendHeatFX's Ultralight fabric innovation is a combination of technically engineered fiber formations that provide superior warmth without bulk. Microscopic "pockets" inside the fiber create a thermal warming effect next to you skin. This fabric is designed with spandex to enhance fit, mobility, and moisture management. Keep your base layer selection simple. Take into consideration: Your Activity Level, Where You Will Be, and, How Cold You Will Get.