The Vevor workout sandbag is a heavy-duty training bag designed for strength training, cross-training, and full-body workouts. It features durable 1050D Cordura nylon construction with a PU coating on both the inner and outer bags for long-lasting performance. The adjustable fill design supports up to 100 lbs, making it suitable for a range of fitness levels and workout styles. Its waterproof, sand-proof construction and reinforced closure system help prevent leaks during intense training. The bag is also portable and easy to store for home, gym, or outdoor use.