• Upper material: high-quality genuine cowhide leather
• Filling: cotton and polyester blend (medium hardness)
• Specifications Steel Balance Crown (Green Hill Corporation Patent)
• Measuring Tips: All bags are designed for competitive training. Lighter bags make training more dynamic and promote leg movement; Heavier bags are recommended for more stable, repeated, arm strengthening workout. The 150 cm and 180 cm bags can also be used for kick boxing training.