St. John&rsquo;s Bay Men's Thermal Underwear Shirt Tops Base Layer Long Johns Crew Neck T-Shirt Cut Classic lightweight thermals, soft waffle fabric; Great for women too with cozy roomy boyfriend fit Keeps heat in & cold out for cool, winter weather; Moisture-wicking fabric keeps you dry all day Pick long-sleeve crew shirt; Tops are tagless for comfortable wear; Reinforced seams to last longer; functional fly; Choose Natural (off-white), Navy Blue, Dark Gray 60% Cotton, 40% Polyester; easy care knit blend; Made in Pakistan; machine wash cold/tumble dry low Mens Sizing (size up for looser fit): Small: 34-36 chest; Medium: 38-40 chest; Large: 42-44 chest; XL: 46-48 chest; XXL: 50-52 chest; (1) Thermal Shirt By St. Johns Bay, Choose Size & Color From Dropdown, New In Retail Packaging