100% Cotton Pull On closure Machine Wash ✅ COMFORT DURABILITY WARMTH: Stay warm, stylish and comfortable in our heavy or medium weight thermal shirt. Double up on comfort in this Thermal Tee, with a generous serving of highly breathable and durable material to help you stay comfortable all day yet warmer with small square knit waffles to trap body heat better and ribbed cuffs to lock out the chill and cold. ✅ STYLISH AND DURABLE THERMAL: Nothing beats an awesome thermal shirt that is stylish enough to wear on its own and still awesome for layering bulk-free and bunch-free under your favorite sweater, sweatshirts or work wear! Made from durable, soft cotton or poly blend that is sure keep its size, color, shape and still looks great through repeated washes. ✅ Size guide : Small (Fits: 34-36), Medium (Fits: 38-40), Large (Fits: 42-44), X-Large (Fits: 46-48), 2X-Large (Fits: 50-52) and 3X-Large (Fits: 54-56) ✅ GREAT MODERN FIT: provides you with a cut that is neither loose nor too fitted or clingy to your body - our shirts will perfectly drape on your body creating a crisp and effortless look. ✅ Available in :Heavy weight and medium weight. Waffle pattern thermal shirt Medium Weight Material : Content : 100% cotton Heavy Weight Material : Content : 88% Cotton 12% Polyester. Model pictured is 6' 2" tall and 188 lbs wearing a size medium