The TUSA Sport Reef Tourer Long Blade Snorkeling Fins have an advanced multi-flex long blade design, thrust channel technology for superior propulsion and the foot pocket is made with a soft, durable compound designed for comfort. The open heel design allows for quick and easy size adjustment and the silicone heel strap enhances comfort and durability. This non-vented fin is engineered to provide a lot of power for its compact size. The fins are lightweight and ideal for travel. Fin is available in multiple sizes and colors.