If the task requires camouflage in winter conditions, this M05 snow pattern is probably the best camouflage for it.
The covers are available in two sizes, which fit over the backpack in more or less the following way:
The M size covers a maximum of 30 litre daypacks (Savotta S-M, Kånken, Miltec assault pack).
XL is the answer for trips with weeks of gear on your back. The cover is sized to protect maximum of 120 litre backpacks. Of course, this is really good option for 80 litre packs as well.
The covers are sewn from lightweight 100gsm PU coated and DWR finished ripstop fabric with a waterproof rating of over 10,000mm, in the official Defence Forces M05 snow pattern, which the Americans have also reportedly admired!
