This thermal longsleeve shirt from Jockey may just be your best winter friend! The double-layer jersey design uses a cotton/viscose blend that catches & retains warm air created by body heat, but also wicks away moisture to keep you comfortable. The layer closest to your skin has a soft brushed finish for added comfort, while the top layer is designed to resist heat loss. Team this longsleeve with the Jockey Long John to provide yourself with a total body heat management system! (08/11)