Introducing The O2 Strap by BluShark Straps. A rugged two-piece version of the ever popular BluShark Straps Original. Who doesn't love a good watch caseback design? The O2 Strap allows you to admire that unique caseback and is equipped with quick release pins, allowing you to swap your straps with ease. The double layer of nylon adds extra durability, effectively doubling the strength of the strap, while the sliding second keeper ensures your strap stays tucked in just the way you like it, offering personalized comfort and style. ● Dual-layer nylon construction cleanly stitched around the perimeter ● Premium stainless steel buckle ● Sliding Keeper Two Strap Lengths Included! This unique feature allows you to try on both sizes and select the one that perfectly complements your wrist, ensuring an ideal fit every time. Sizing Details: ● Buckle Side: 82mm ● Tail Side: 120mm & 140mm (both lengths included!) ○ 120mm: Fits wrists from 6.25" to 8" ○ 140mm: Fits wrists from 7.25" to 8.75" Fit Details: The BluShark O2 Strap is a robust, two-piece strap designed with a military-spec aesthetic. While it may feel a bit stiff initially, you'll find that the nylon material quickly adapts to the contours of your wrist, providing a custom, comfortable fit within just a couple of days.