Although we are confident that our Waterbloc material will outperform any similar groundsheet fabric our groundsheet protectors offer some extra protection against sharp objects as well as keeping the tent underside clean.
The Terra Nova Laser Space 5 Groundsheet Protector is sized to fit exactly under the inner tent, and attach to the tent pole feet with shockcord loops to keep them in place. This ensures the weight penalty is kept to a minimum on our lightweight models and our expedition tents gain the extra durability they need for the conditions they're used in.
