This soft smooth Silicone Sporty Heavy Duty Watch Band is a perfect combination of comfort, flexibility and durability. This band will not easily crack, smell or get harder in any rough sports or other activity. This high quality Silicone Watch Band is soft, waterproof and hypo-Allergenic. Additional Information: Our Silicone Bands are manufactured with superior grade Silicone with high tensile and strength and can endure any extreme environment and will not easily deform or crack. They are extremely soft and comfortable. They have plenty of holes available to adjust the length and fit wrist.