The Solar Uni Spider 0.5m Extended Wrap is designed for use with both the SP UNI Spider and South Westerly Pro UNI Spider bivvies, converting either shelter into a longer-stay option. It is currently the only extension that acts as a full overwrap or twin skin, improving heat retention and helping to eliminate condensation. The wrap is made from SolarTex material and delivers a bivvy-wide 0.5m long porch, suitable for storage, cooking, and socialising. - Compatible with both SP UNI Spider and South Westerly Pro UNI Spider Bivvies - Converts the UNI Spider bivvy into the perfect long-stay shelter - Currently the only extension to act as a full overwrap/twin skin to improve heat retention and eliminate condensation - SolarTex material - Delivers a bivvy-wide 0.5m long porch, perfect for storage, cooking and socialising - Multiple door/window options via roll-up blind and clear window panel - 4 Snap-Loc magnetic rod ties - Neat, pack-away guy ropes with interwoven reflective thread - Snap-Loc System, magnetic fittings for swift, painless set-up - Robust, alloy frame together with three, extending, alloy, frame support bars - Complete with hard-wearing, carry bag