sentences:  Until the USMC produced their own Digital Woodland Pattern, most poncho liners were produced with the same pattern on both sides.The Marines decided to field one with Woodland Pattern on one side and a solid Coyote Color on the other.There are examples of improved models, which included high-tech 3M fillers (Thinsulate and the like), border and head zippers (there is no hole for one's head on standard issue poncho liners), and a variety of colors and patterns.