The Apple Watch Ultra is Apple's most rugged watch yet, enabling you to take your adventure to the next level. And BluShark's Sport Rubber watch straps are there to support you and your watch the entire way. The Sport Rubber watch strap is soft yet durable, highly flexible, water and sweat proof, perfect for outdoor activities like swimming and other sports, as well as being ideal for everyday use. Black, blue and orange colors will allow you to find your favorite pairing with your Apple Watch Ultra.

This strap "sports" perforations for airflow and accordion styling at the lugs to ensure a perfect fit during any activity.  Two sliding rubber keepers keep everything in place.