Merrell Trail Glove Running Shoes Microfibre AirMesh Upper - For superior breathability, granting your feet improved comfort through cooled aerated mesh. Omni-Fit - The lacing system combines with welded TPU overlays to provide a secure and precise glove like fit. Fused Toe Rubber Bumper - For added protection and durability. Synthetic Leather Sling - Rearfoot sling provides great stability, taking away bulky internal components and leaving you with a stable and secure ride. Flex Plate - Forefoot plate enhances protection and flexibility. It gives the forefoot more room for manoeuvre whilst granting added protection from sharp objects.