Large One Piece Sweat Proof Waterproof Layer + Odor Preventing + Super Premium Fabrics = Your Shirt Staying Dry and You Feeling Confident We founded Ejis based on the belief we could make you feel more confident by solving one of your most embarrassing problems. We’ve woven intelligent design, world class functionality and unrivaled comfort into our sweat proof undershirts to give you what we call wearable confidence Waterproof fabric stops your sweat from transferring to your shirt. Durable enough to be washed again and again. Large one piece fully integrated and silent waterproof layer protects more area and won't leak. The underarm seam cutting through the waterproof layer found on other sweat proof undershirts is gone, which means no risk of leaking Silver is permanently bound to the fibers of the Cotton fabric to prevent odor. SUPER PREMIUM MICRO MODAL FABRIC IN THE PAD is 2x softer and 50% more water-absorbent than cotton. Ensuring the exact same sweat blocking performance as our micro modal sweatproof undershirts. Slim fit design keeps the protective area snugly up against your armpit. Added length and stretch helps to keeps it tucked in TO MOTHERS AND PARTNERS If you want to instantly help someone you care about, know that our undershirts have been specifically designed to solve their problem once and for all WHAT THIS SWEATPROOF UNDERSHIRT WON'T DO Your sweat won't disappear, unfortunately it's not that good. It may feel damp under your arms but it won't show on your shirt WORKS OR YOUR MONEY BACK If for any reason you are not satisfied you have 45 days to return it for a complete refund.