The Canon WP-DC43 Waterproof Case is a durable case that enables you to shoot underwater with your PowerShot S100 digital camera. It is designed to protect the camera against sea water and sand. The housing has a depth rating of 130' (39.6 m). The mechanical controls are easy to operate and allow access to most camera functions. The built-in diffusers help prevent glare for improved visibility. A handy neck strap and silicone grease are included.