BluShark’s Sport Rubber watch straps are 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 the perfect pairing with your favorite watch.

This strap "sports" perforations for airflow and accordion styling at the lugs to ensure a perfect fit during any activity.  It measures 2.8mm at the lug connection and two sliding rubber keepers keep everything in place.