- Size: L • Keep your shirt completely dry with Ejis waterproof undershirts, designed to stop sweat stains in the armpits. • One-piece waterproof layer under each armpit, with no seams running through the layer, eliminating the risk of leaks. • Cotton fibers with integrated silver to combat odor and keep a fresh scent for longer. • Super-premium micromodal fabric in the pads, twice as soft and 50% more absorbent than regular cotton. • Fitted design that keeps the protective area firmly in place, with additional length and elasticity for greater comfort. • Product dimensions: Width 1.3 cm, Height 25.4 cm, Length 30.5 cm.