This District Men's Black Frost Ideal Tri Long Sleeve Crew Tee is perfect for men who want a stylish and practical piece of clothing. You can wear it at the office for a professional look, or at your favorite restaurant or store for a casual outing. In cold weather, it works great as a base layer under a jacket or vest. It's made of a 4.5 - ounce, 50/25/25 poly/ring spun combed cotton/rayon blend, with a tear - away tag and 1x1 rib knit cuffs.