50 PCS Waterproof Island Dressing, 6x7cm Adhesive Wound Dressings Pads with Cotton Absorbent Patche, Breathable and Comfortable. Moreover, waterproof dressing is compact and easy to carry. Strong Adhesion: Waterproof dressings for showering are self-adhesive and adhere closely to the skin to create a secure 360° seal, even on challenging areas like elbows and knees.