Enjoy uninhibited views under water with this Sideview Pro Adult Snorkel Set. Mask with silicone skirt has bonded 4-window lens for 180° panoramic viewing. Pro Glide buckle system for easy adjustment. Snorkel features ergonomic, silicone mouthpiece with purge and Pivot Dry submersible dry top that automatically closes under water. Open-heel adjustable fins are designed with Pivot-Flex technology that reduces foot strain by transferring stress to the center of the foot instead of at the toes. In addition, the heavy-duty rail allows the fin to store energy on the down stroke, releasing it just prior to the upstroke for increased power. Includes nylon travel carry bag. Sizes: S/M(5 - 8-1/2), L/XL(9-13).