One-way moisture technology ensures you stay dry. Soft, non-woven fabric wicks keep moisture away from skin. Excess milk is quickly drawn into the core of the pad and absorbed by a special polymer. Your clothing remains protected by the unique laminated, waterproof tissue (non-plastic). Stay dry lining helps prevent sore nipples by keeping moisture away from skin. Ultra slim and light, only 2mm thickness. Unlike the thick, bulky pads, will not show under clothing. Naturally contoured to fit comfortably. Adhesive strip keeps in place. Each pad is hygienically wrapped for cleanliness and convenience.