Sweat-wicking fabric with different levels of ventilation across the fabric Minimum seams for reduced chafing 4-way stretch Crew neck Long sleeves Heathered effect Hit the gym in style with this Threadborne Seamless T-Shirt from Under Armour. The brand's sweat-wicking fabric is fast-drying and the level of ventilation is body mapped, while the 4-way stretch construction improves mobility. Built with long sleeves, a classic crew neck, a body-hugging fit and an on-trend all-over heathered effect.