FreshIQ advanced odor protection technology attacks the odor-causing bacteria in your clothing that causes your underwear and socks to smell - so now you can feel fresh all day. All the comfort and quality you want in a crewneck undershirt-available in Tall sizes. Made with our 100% premium cotton, ComfortSoft fabric is the ultimate in comfort. Tag-free for itch-free comfort. Lay Flat Collar is designed to keep its shape. Length of Tall Crewneck is 2 inches longer than the XL sizes.(For more specific sizing refer to the sizing and size charts.)