How to extend and add hoops to a bivvi bag

We bought a pair of Terra Nova Moonlite sleepingbag covers. I am 1 m 83 cm tall and on our first outing on Dartmoor found the bag much too short for me. It consequently felt a little claustrophobic. Be aware that these modifications will invalidate all warranties on the bags. Modification 1 Extending the bag by 20 cm. I bought some lightweight breathable waterproof material and woven nylon braid from Pennine Outdoor http://www.pennineoutdoor.co.uk. I cut the Moonlite straight across near the bottom. Carefully measured the circumference 10 mm above the cut and 10 mm below the cut. Then cut a … Continue reading How to extend and add hoops to a bivvi bag