Using Horween Chromexcel Leather, the strap is saddle stitched by hand for durability. - Stuffed with oils and waxes, the leather has the ability to develop a great patina over time. When folded or flexed, the pull up effect shows through the temporary lightening of colours. - The construction utilizes a single leather strip that is folded over to form each strap, this gives the same leather texture on the underside against the wrist as the top and allows both sides to age uniformly with use. - Sides of the leather are smoothed and hand burnished for a polished look. - With a thickness of 3.0mm to 4.0mm, it is thick yet supple, curving around your wrist comfortably. - Paired with a Made in USA removable stainless steel tang buckle, the strap comes with a fixed and floating leather keeper. - Detailed with a decorative line that runs along the edge of the strap and keepers.