Layers of a Woobie
Woobies are a quilted piece with the outside fabrics being a featherweight layer of 100% nylon. The nylon sandwiches a thin layer of 100% polyester batting which is held in place with rows of wavy quilting.
The Woodland pattern is a camouflage pattern that was used as the default camouflage pattern issued to the United States Armed Forces from 1981, until its replacement in the mid 2000s. Woodland is usually what’s used to reference the black, brown, green prior to the ACU. It also had 'chocolate chips' which was the desert pattern in the first Gulf war.
Marines have the Woodland and Desert MARPAT digitalis, The pattern I offer is the Woodland Digital camp pattern which is backed by the Coyote Brown, which was inspired by the Ralph Lauren Home paint color 'Coyote'. This color has since been discontinued from RL.
ACU is the grey digital pattern which was first introduced to the military in 2004, the same time as the UCP, Universal Camouflage Pattern. The ACU was actually the functional uniform design implemented at the same time as UCP but has since been retired.