Adjustable length for resistance The swim parachute has an adjustable length design to adjust the resistance according to your training needs. Durable, wear resistant material Made from environmentally friendly PP material, it is waterproof, tear resistant, and wear resistant for long lasting performance. Comfortable and adjustable waistband The waistband is adjustable to offer a secure and comfortable fit for different users. Enhanced swimming training Designed to improve swimming technique, the parachute increases resistance for a more challenging workout and greater strength development. Key specifications and attributes Material: PP Features: waterproof, tear resistant, wear resistant Length: adjustable Waistband: adjustable for a secure fit Function: increases drag to enhance swimming training Use scenarios 1) Lap pool endurance sessions: set a moderate resistance and swim longer distances to build stamina. 2) Sprint and power training: increase resistance for short, intensity sets to develop strength. 3) Technique drills: use controlled resistance to practice form, body position, and timing while swimming.