Amanzi pull buoys amanzi wilder 4 layer pull buoy multi isolate your legs and sharpen your stroke with the amanzi wilder 4 layer pull buoy. The amanzi wilder 4 layer pull buoy has been designed to isolate the legs, promoting upper-body strength and technique improvement. The pull buoy reduces leg movement while swimming, allowing the swimmer to focus on arm strokes during training sessions. Suitable for beginner and advanced swimmers alike, it enhances core strength, strengthens the upper body, and improves technique. Train smarter, stroke stronger. Leg isolation upper-body focus technique training beginner to advanced eva construction 4 layer design 3 key features leg isolation the wilder pull buoy is designed specifically to reduce leg movement during training. By taking the legs out of the equation, you can direct all effort into your arm strokes. This focused approach accelerates technique development and builds meaningful upper-body endurance. Core and upper-body strength training with a pull buoy places greater demand on the core, shoulders, and arms with every length. The wilder’s 4 layer construction provides reliable, consistent buoyancy so you can hold good body position throughout the set. Regular use builds the kind of strength that translates directly into faster, more efficient swimming. Suitable for all levels whether you are working on the fundamentals or refining an already efficient stroke, the wilder pull buoy is built for both beginner and advanced swi...