Indera Big & Tall Men's Thermal Crew Shirt Heavyweight Long Johns HEAVYWEIGHT Thermal Crew shirt for big and tall in off-white/natural color. This garment is rated for extremely cold temperatures. THIS IS A SNUG-FITTING GARMENT. Go up 1-2 sizes for a looser fit. Refer to Hand Measurements chart in the photo gallery for each size's measurements. FABRIC: 9.1 oz. Heavyweight waffle knit - 50% Cotton/50% Polyester. Manufacturer's description: "Super Heavyweight." SHRINKAGE CONTROLLED for lasting size and shape. MADE IN USA by Indera - One of the largest suppliers of thermal underwear products in the USA for over 100 years