MAC's Pro Longwear Nourishing Waterproof Foundation smooths the skin with medium-to-full coverage that won't smear, melt, or budge for up to 36 hours. This long-wear foundation is waterproof as well as transfer, swear, and humidity-resistant.These formulas blend with the matching skin tone for lightweight and flawless coverage with a natural-looking satin finish.This product is featured in our blog post on the best makeup to survive pool water and ocean waves!