1. Material: neoprene + iron sand 2. Neoprene fabric is soft, comfortable, and breathable. 3. Heavyweight and filled with fine iron sand for a comfortable, non-abrasive feel. 4. Adjustable buckle for adjustable length, suitable for both men and women. 5. Durable and durable, with fully sealed seams to prevent unraveling and sand leakage. 6. Night vision reflective strips ensure safety during nighttime running. 7. Mesh pocket ensures ample storage space. 8. Weight: 5kg
