The Bomb Shelter Fly-Double by Metolius makes a comfortable, well-protected night on the mountainside possible! The Portaledge fly is made for the Portaledge Bomb Shelter Double. Robust, abrasion-resistant nylon materials are used. The PU coated Oxford Nylon provides outstanding protection against varying weather. High-quality T6 aluminum poles can optionally be used for added comfort and space. The Portaledge fly has an integrated stuff sack for easy storage. The four aluminum anchor points are robust and stable for maximum safety. An anti-fog viewing window lets you see the conditions outside without having to exit the Portaledge. If you want to upgrade your Portaledge to a spacious, protected home for the big wall, the Metolius Bomb Shelter Fly-Double is right for you!