This Timex Ironman Triathlon wristwatch band is a perfect fit for the athletic and casual wearers. The two-piece strap design is made of black rubber and a stainless steel buckle, with an Orange Ironman logo to add some zest. The band is equipped with 100M water resistance and includes free spring bars. At 7.25 inches, this band is perfect for most wrist sizes. The Timex Ironman Triathlon Rubber Sports watch is an ideal match for this band. The buckle size is 12mm, and the band tapers down to 12mm. This band is compatible with the Timex - Ironman Triathlon and has a 15mm watch lug size.