From SORD come the Mountain and Cold Weather Operations (MACWO) Booties.

Insulated with the lightest indication currently available, Primaloft Cross Core Ultra Insulation which contains Aerogel, combined with a DWR-coated NanoSteath 70d Ripstop AU-T Camouflage upper, 210D Ripstop Nylon rand, MIL-SPEC GripTAC non-slip sole and thermal reflective inner lining. These tent booties weigh just 100 grams.

Offered in AU Terrain or MultiCam in sizes 8-10 or 11-13.
www.sordaustralia.com/macwo-booties