Tear-Resistant & Durable: Our workout sandbag is made with high-quality materials, featuring a polyester Cordura 1000D inner bag with a PVC coating and a nylon 1050D Cordura outer bag. Reinforced connections and full-length handles ensure reliability Waterproof & Sand-Proof: Our fitness sandbag features YKK zippers and double-layer hook-and-loop closures, reinforced with a waterproof outer layer and double-stitched side seams to better contain the sand and avoid spillage Full-Body Training Tool: This sand bag for weight training is ideal for weight training, muscle building, and conditioning exercises. It targets shoulders, arms, chest, abs, legs, and overall strength, providing a full-body workout Adjustable Weight: Featuring a leak-proof filling bag, this adjustable sand bag allows you to adjust the weight from 50 to 125 lbs, making it suitable for different fitness levels and training needs. Tailor the resistance for your workout goals Portable & Easy to Store: This heavy-duty workout sandbag is easy to assemble and carry. Once folded, it fits conveniently into a training bag, making it suitable for use at home, in commercial gyms, outdoor workouts, or mobile training sessions