Easy To Apply And Remove Safely: Leave No Trace On Skin. Removal With Oil Or Lotion For Those With Extra Dry Skin Are Recommended. Strong Adhesion: The Boob Tape And The Nipple Cover Have Strong Adhesion And Do Not Fall Off Easily. And They Are Waterproof, Even Though You Are Wearing Them Under The Water Or You Sweat A Lot, They Will Keep Attached To The Body Like The Second Skin.