The specialized zee cage ii dt is one of specializeds top selling bottle cages the zee cage allows you to pull the bottle out to the side for a faster and easier release if you place the bottle cage on the down tube then it will be a right hand loading cage and if you mount it to your seat tube then youll be pulling out the bottle to the left with a reinforced composite material improves the durability and also improves weight issues and to finish it off specialized laced the bottle cage w