This Snorkeling Kit has everything you need to begin snorkeling. The mask, snorkel, and fins all fit inside the included travel bag to make this set easy to pack along for underwater exploration anywhere. Set sizing is for the individual fin size that is needed.3-way adjust Pro-Glide buckles for easy adjustments.Submersible, dry top snorkel with Pivot Dry Technology - Designed to keep water out of the breathing tube above and below the surface of the water.Ergonomic silicone mouthpiece provides comfort and reduces jaw fatigue.Flex section maximizes comfort and improves fit.One way purge valve for easy clearing.Hypoallergenic silicone mouthpiece.Snorkel placement - Place snorkel on left side of face attaching snorkel keeper clip to mask strap.Open heel Fin with an Easy-adjust heel strap for custom fit.Pivot-Flex Technology provides a powerful and efficient kick with less energy and strain.Dual composite blade provides superior snap and thrust.Soft foot pocket with open heel makes fin easy to put on and take off.Wms S/M: 5-9.5.Wms L/XL: 10-14.Mns S/M: 4-8.5.Mns L/XL: 9-13.