Serge (fabric) with worsted warp and a woollen weft. Denim is a cotton fabric with a similar weave; its name is believed to be derived from "serge de Nîmes" after Nîmes in France. Serge (fabric) Serge is a type of twill fabric that has diagonal lines or ridges on both sides, made with a two-up, two-down weave. The worsted variety is used in making military uniforms, suits, great coats and trench coats. Its counterpart, silk serge, is used for linings. French serge is a softer, finer variety. The word is also used for a high quality woolen woven fabric. The name is
Type 07 a dress uniform to be worn by officers at ceremonial events. In 2007, the PLA introduced the Type 07 combat and training uniforms such as the US BDU-style. They replaced the Type 87 combat and training uniforms which dated to the 1980s. The uniform includes a winter style made of heavy-weighted cotton fabric material and a summer style made of polyester and cotton twill fabric. Both styles include a coat, trousers, a soft cap and black leather boots. The summer uniform has a coat, with cuffed sleeves, a soft turndown collar, two breast pockets, two hip pockets, and an arm