Adjustable open heel design - Open-heel adjustable straps with a quick-release buckle keep the strap length set once you choose your size, so you can share the fins among family or friends without re-adjusting for every use. Easy donning and doffing. Wears comfortably - Made from high-quality materials with a soft foot pocket. The design features a unique open toe and flame-shaped mesh instep to reduce resistance, improve breathability, and provide a comfortable, lightweight, flexible, and sturdy fit for extended wear. Reliable material - Foot pocket uses TPR material; buckle uses PC; blade uses PP. This combination is anti-deformation, lightweight, corrosion resistant, and durable, while maintaining flexibility for barefoot-like comfort. A non-slip shadow bottom adds safety during use. Convenient travel - Compact, lightweight, travel-size short fins. Includes a quick-dry mesh bag and hard plastic inserts to protect and store the fins. The mesh bag quickly filters sand and water, making it ideal for travel and carry. The hard plastic keeps snorkeling fins in shape when stored. Practical use scenarios - Snorkeling and scuba trips: comfortable open-heel fins that share easily among gear, with secure fit for varied foot sizes and quick donning after gear changes. - Pool training and lap swimming: short fins designed for lap use, aiding kicking drills while staying compact and easy to transport. - Beach vacations and travel: lightweight, travel-ready fins with a protective storage system and breathable design, suitable for easy packing and packing protection.