1.     (Better than Gortex) Bivy of the new USMC 3 - Season Sleep System

2.     Features a semi-circular, non-locking zipper (so soldier can raise his arms and get out instantly) and a bug-proof screen over the face like a one-man tent.   This Bivy fits all sleeping bags; the label says “One size fits all”.  

3.     There may be tiny dots of sealant on the Bivy  or other sealent showing because our used bags are completely waterproofed like new.

• Overview:   The Three Season Sleep System (“3S”) includes a sleeping bag (regular size about 5ft 11 in) (long over 6 ft) both sleeping bags can fit in the bivy, and the Improved Bivy Cover (IBC), at a total weight of 4.8 lbs.  The  Bivy Cover allows the Marine to be totally encapsulated under extreme weather conditions 10° below freezing and above; (when used with a ground insulator pad and proper clothing, intermittent use down to 5°F is achievable).  This sleeping bag has an antimicrobial inner liner that helps to protect against the growth of micro-organisms.  An integrated flexible wire allows the Bivy to stand off from the face (like a one-man tent); the bug-proof screen window can be fully or partially open.