This Ezra Orange Leather - Rubber Hybrid Performance Strap is perfect for those who lead an active lifestyle but also attend formal functions. Whether you're sweating it out at the gym or sitting in a business meeting, this strap fits right in. It combines a FKM rubber core with a calfskin leather upper. While we don't list specific size or weight details, it's designed to feel comfortable on your wrist. The strap's special design ensures constant ventilation, letting moisture evaporate quickly so your wrist stays dry and comfy all day.