Sterile Waterproof XL: Sterile dressings for larger and post-operative wounds Elastoplast Sterile Waterproof XL wound dressings for waterproof protection of everyday larger or post-operative wounds. With their waterproof, flexible film and strong adhesion, the dressings are ideal for washing, showering, bathing and swimming. The extra-large wound pad cushions your wound without sticking to it, providing high comfort during wearing. The XL dressings (6 x 7 cm) seal all around the wound to prevent contamination. XL (8 x 10 cm) also available.