America's #1 in the crewneck undershirt silhouette.* 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. ComfortSoft® fabric feels great against your skin. Designed with preshrunk cotton for a great fit.. Tag-free for itch-free comfort. Roomy armholes allow for freedom of movement. Lay Flat Collar is designed to keeps its shape. Generous length helps hem stay tucked.