- Safe training tool: Buoyant core provides lift and stable positioning for kicking, breathing, and body alignment during practice; adjustable strap ensures a secure, comfortable fit. - Breathable skin-friendly design: Soft EVA surface reduces skin irritation; waterproof outer layer maintains shape and supports movement training. - Adjustable fit: Wide size range fits adults and children; easy to resize as swimmers grow; quick-release buckle allows simple, fast fitting. - Ready to use from start: No preparation needed; water-resistant quick-release buckle with dual locking stays secure through all movements. - Durable and compatible: Built for frequent pool use; suitable for various drills and styles, from beginners to technique-focused training. - Use scenarios: - Parent-child swim lesson in shallow water focusing on kicks and posture - Solo practice for kick sets and balance drills in a pool - Warm-up or rehab drill in a class to stabilize the torso while limbs move