The original Baseblue AirSponge , Use to flaunt your best makeup techniques and achieve a natural, sheer finish effortlessly! The AirSponge swells in size when wet to prevent absorption and product waste from primers, foundations, and powders when applied to the sponge. After you contour and blend like a pro, simply clean the ultra-soft cosmetic applicator with soap and water and let it air dry before storing in its transparent makeup sponge packaging.