Gore Bike Wear Power Bib Knickers. The Gore Bike Wear Power Bib Knickers are a cool weather classic for those days when the temperatures warrant covering the knees but not the entire leg. Their highly functional material mix, with shifted seams to reduce chafing and gripper elastic on the bottom hem, means these bib knickers will stay in place and feel great as you power the pedals. They also come with Gore's Power chamois, featuring a dual density specially designed for medium to long distance rides. The chamois's soft microfiber fabric delivers elasticity and moisture management, too, to ensure comfort for the duration of your ride.