Amerian Causal Long Johns for Men, Soft Cotton Shirt/Pants 2PC Fleece Thermal Set THIS PRODUCT HAS A SNUG FIT. FOR A ROOMIER RELAXED FIT, PLEASE ORDER A SIZE UP. 100% Cotton ribbed cuffs fit comfortably Thermal Shirt and Thermal Pant set Breathable Fleece Texture helps assure cozy warmth Sturdy Seams help ensure lasting wear