These liners are now current military issue, and designed for use with the medium or lightweight modular sleeping bags currently supplied to UK forces.

 

Fully machine washable...

Central chunky zip with Velcro baffle to retain heat...

 

Brand new unissued, recently released through surplus disposal channels, still new in wrappers.

 

This particular liner is designed for the LARGE size sleeping bags, (medium or lightweight versions....)