What can a thick waffle knit do for your long sleeve crew? It transforms a basic men’s tee into a super-powered thermal. The Sunjam Long Sleeve T-shirt for men is part of our newest thermal collection, bringing warmth and authentic surf style to your everyday routine. Cut in a classic fit that’s not too tight and too clingy, and still layers smoothly under your hoodies without extra bulk. This is the leveled-up long sleeve you need now.