This thumb loop supports the push-off and retrieval movement. The anatomically perfected cut and the breathable, soft inner material with the wide contact surface allow the loop to fit the hand securely and smoothly. The width is continuously adjustable by Velcro. The direct contact with the handle ensures that every impulse is transferred to the pole without loss of power. With the Trigger Shark 2.0 system, you can latch on and off the pole grip with the loop in a flash.