The Shark Frame Strap Mesh is a strap with an anatomical fit and is made of breathable mesh material. Developed in one piece, the Shark Frame will perfectly fit the contours of your hands and prevent blisters and other discomforts.The Shark Frame Strap Mesh works with the Trigger Shark 2.0 system, so you always have excellent contact with your Leki pole handle to give all your strides the energy boost they need, but also the ability to engage or disengage the pole strap In an instant.