All-day Comfort - Our Rugged Apple Watch Bands for Men and Women are silky-smooth yet ultra-tough. Enjoy long-lasting durability without compromising on comfort. Premium Build - Our Nomad Watch Band is crafted from durable, vulcanized FKM (fluoroelastomer rubber) that is 100% waterproof so you can sweat and swim without worrying. Adventure-proof Design - This Apple Watch Ultra Band is 100% waterproof and can withstand high temperatures and harsh chemicals. Unlike other materials, FKM won't crack or degrade, ensuring long-lasting performance on even the toughest adventures. Rugged Sophistication - Conquer any challenge in comfort and style. Our Nomad Apple Watch Band is built to endure the elements, so you can push your limits and look good doing it. Universally Compatible. Compatible with Apple Watch Ultra 1-3, Series 1-11, and SE. Band is one size fits most, designed for wrist sizes ranging from 150mm to 220mm. Designed to give your Apple Watch a subtle, modern look while staying ready for any adventure. Constructed from FKM rubber and metal injection molded stainless steel hardware for lasting durability.