Durable construction Made of high-quality waterproof nylon fabric with a double closure. Resistant to tearing and abrasion with reinforced stitching for reliable performance. Versatile sizing Available in a range of sizes to meet different training needs and exercises. Core-focused performance Sandbag training engages core stabilizers to improve energy transfer during complex movements such as pulling, lifting, squats, squeezes, bends and controlled falls. Adjustable intensity Included padded sacks can be quickly added or removed to change workout intensity, helping your body adapt to instability and build a stronger core. Easy to store and maintain Easy to store and use in the gym, at home, or in a park. The outer bag is recyclable, easy to clean and maintain for repeated use. Full-body workout anywhere Provides a full-body conditioning option that can improve heart health, strength endurance and flexibility. Use scenarios - Home gym: add resistance for routine strength and conditioning workouts. - Gym sessions: perform functional lifts and core work with varied load. - Outdoor training: take it to a park for cardio, stability and full-body conditioning.