Have you seen the RLD Designs shell? Similar, but one piece(like a normal shell) and stainless steel. Double the roof carrying capacity. Similar price point with more options available.
(2015+) Chevy Colorado Truck Cap/Canopy | RLD Design USA
RLD Design stainless steel canopy for the new Chevrolet Colorado - updgrade your chevy with the world's strongest topper / camper shell.