The UltraFit nylon straps are lightweight, soft and comfortable to wear. They’re made with an elastic dual-layer antimicrobial nylon weave that allows moisture to escape. The strap design loops around the pins and is secured via two sets of hook and loop fasteners at both ends of the strap, providing easier adjustability and a secure fit for a variety of wrist sizes (see your product specs tab for wrist circumference information). UltraFit nylon straps offer trusted performance and superior durability. Compatible Devices: - Approach® S60 - Approach® S62 - Approach® S70 - 47 mm - D2™ Delta - D2™ Mach 1 - Descent™ G1 - Descent™ G1 Solar - Descent™ G1 Solar - Ocean Edition - Descent™ G2 - epix™ Pro (Gen 2) – Sapphire Edition | 47 mm - epix™ Pro (Gen 2) – Standard Edition | 47 mm - fēnix® 5 - fēnix® 5 Plus - fēnix® 6 - Pro and Sapphire Editions - fēnix® 6 - Pro Solar Edition - fēnix® 6 – Standard Edition - fēnix® 7 Pro – Sapphire Solar Edition - fēnix® 8 – 47 mm, AMOLED - fēnix® 8 – 47 mm, Solar - fēnix® E – 47 mm, AMOLED - Forerunner® 745 - Forerunner® 935 - Forerunner® 945 - Forerunner® 945 LTE - Forerunner® 955 - Forerunner® 955 Solar - Forerunner® 965 - Instinct® – Standard Edition - Instinct® – Tactical Edition - Instinct® 2 - Standard Edition - Instinct® 2 Solar - Instinct® 2 Solar - Tactical Edition - Instinct® 3 – 45 mm, AMOLED - Instinct® 3 – 45 mm, Solar - Instinct® Crossover - Standard Edition - Instinct® Crossover Solar - Instinct® Crossover Solar - Tactical Edition - Instinct® E – 45 mm - Instinct® Solar – Standard Edition - Instinct® Solar – Tactical Edition - MARQ® Adventurer - MARQ® Adventurer (Gen 2) - MARQ® Adventurer (Gen 2) - Damascus Steel Edition - MARQ® Adventurer Performance Edition - MARQ® Athlete - MARQ® Athlete (Gen 2) - MARQ® Athlete (Gen 2) - Carbon Edition - MARQ® Athlete Performance Edition - MARQ® Aviator - MARQ® Aviator (Gen 2) - MARQ® Aviator Performance Edition - MARQ® Captain - MARQ® Captain: American Magic Edition - MARQ® Captain (Gen 2) - MARQ® Commander - MARQ® Commander (Gen 2) - Carbon Edition - MARQ® Driver - MARQ® Driver Performance Edition - MARQ® Golfer - MARQ® Golfer (Gen 2) - MARQ® Golfer (Gen 2) - Carbon Edition - quatix® 5 - quatix® 5 Sapphire - quatix® 6 - quatix® 6 Titanium - quatix® 7 – Standard Edition - quatix® 7 Pro - tactix® 8 – 47 mm, AMOLED