Strauss Bicycle Frame Bag, (Black) and Gel Seat Cover (Black) Touch screen: Tpu material, very sensitive to use the touch screen Waterproof: Both sides of the pockets with waterproof pu fabric, and the zipper is also waterproof design, there is no problem cycling in rain, but not recommended in a heavy rain for a long time Thick pad with shock absorption function and soften the riding, inner side the seat cover with gel-point, ensuring the seat does not slip after installation With 3d anti-slip granules on the back, necessary tool for your outdoor cycling High density sponge slip mat comfortable and soft, ergonomic design