0241Tactical have sent over details of their cinch bags:
0241Tactical Cinch bags made from 70 Denier waterproof PenCott material. Perfect for sleeping bags or anything else you need to give another layer of protection from moisture . Two Sizes available: Regular 12" Diameter X 16" Tall and Large 15" Diameter X 22" Tall.
Available in PenCott GreenZOne, Multicam, A-TACS AU, A-TACS FG, and MARPAT Woodland
Check them out at www.0241Tactical.com