Stay warm during those cold temperatures! Coldmaster means just that - master the cold. Indera Mills manufactures the "Coldmaster Long Johns" brand of fine knitted thermal underwear. Coldmaster makes lightweight thermal garments to make living in cold temperatures pleasurable. Coldmaster Men's Red Union Suit is one piece. Coldmaster White Short Sleeve Union Suit is one piece. Coldmaster No Scent Hunter Union Suit. Coldmaster 100% Polypropylene Thermal Shirt Coldmaster No Scent Hunter Knit Hood Balaclava. Coldmaster Women's 100% Cotton Rib Knit Lace Tank Top Vest.