ULTRAFIT NYLON STRAPS 26MM GREY FITS FENIX3 D2 DESCENT FENIX5 FT601 FT701 QUATIX3 TACTIX3 Just swap and go with this ultra-light 26 mm wide strap for your compatible watch. The easily adjustable UltraFit nylon strap loops around the spring bar and secures via two hook and loop fasteners. Providing ultimate comfort, trusted performance and superior durability, UltraFit is durable with an elastic dual-layer anti-microbial nylon weave that allows moisture to escape.