Warm & Breathable: Mens thermal shirt made of smooth, stretchy, athletic fleece fabric, these men's thermal shirts are super soft and breathable, the inner fleece traps the heat to keep you warm, the outer Layer wicks sweat away to keep dry. Classic Athletic Cut: Men's base layers shirts sit below your waist, cover your hip. With gentle compression, this mens running tops contour your body, provide the nearest warmth for the cold weather. Order size up for casual wear. Mens Mock Turtleneck Long Sleeve Shirts : Mock turtle neck is soft and comfortable, Stand up for extra coverage and warmth. Thumbhole Cuffs: Mens thermal shirts Long Sleeve with thumbhole keep the sleeves from sliding up and for extra coverage. Reflective elements for night run safety. Versatile for All Sports and Everyday Wear：Men's Thermal Shirt Suitable for a wide range of activities including running, yoga, baseball, football, soccer, gym workouts, fishing, hiking, boxing, cycling, fitness training, rugby, bodybuilding, or casual wear—perfect for any outdoor sport or everyday use. FitsT4 Men‘s Thermal Running Tops for Cold Weather Fleelice series collection is made of light weight, smooth, elastic fabric with excellent recovery. This thermal running shirts with soft fleece keep you dry warm while exercising in cold weather. Thumbholes cuffs keep your sleeves from slipping up. Elastic mock neck stand up for extra coverage. Reflective elements for safety concern. Easy to pair leggings or pants, suitable for wearing solo or layer under sports coats. Feature & Fitting: Breathable, Light weight, Four-way stretch Design for yoga, running, hiking, layer up for sports clothes Athletic cut, length to cover hips, form fitting, gentle compression Mock neck, Reflective elements, Thumb holes Wear solo for cool days, layer under coats in winter