The XL-R version boasts a variety of great features sure to be pleasing to any professional grower. From the choice of mylar or white walls and drip tray to the multiple options for placing your ducts and cabling, every inch of this grow tent has been well designed. This is a superior tent in all respects, and you can be sure that the 1mm thick wall material is both lightproof and scent-proof, meaning nothing will escape once you have your set-up running. If you need to peek inside without disturbing the crop, a clever side viewing window is included. Created with a solid construction of steel poles and click in place corner connections.