In comparison with the band-like garment of conventional, number of parts is small, the mounting method with a simplified, for the wearer of the supporter, to give the intraperitoneal pressure increasing effect, we maintained rear system, to stabilize the sacroiliac I will provide the supporters that can. Supporter 100 includes a base member 10 which is made of knitted fabric by warp knitting, the longitudinal direction L direction knitting of the knitted fabric, and feeds the stretchable in the longitudinal direction L, inhibited the stretch in the transverse direction S, the backrest 11 is the central part of the substrate 10, a protrusion 12 that protrudes upward through the both end portions consisting of both sides of the backrest 11, the letter directed upward toward the inner edge 26b thereof to the vicinity of the boundary projections 12 and backrest 11 I and a curved portion 13 to be curved jaw. [Selection] Figure Figure 1従来のバンド状衣服と比較して、部材点数が少なく、装着方法が簡易であると共に、サポーターの着用者に対して、腹腔圧上昇効果を与え、後屈抑制を図り、仙腸関節を安定させることができるサポーターを提供する。サポーター100は、経編による編生地からなり、当該編生地の編み立て方向を長手方向Lとし、長手方向Lの伸縮性を与えると共に、短手方向Sの伸縮性を抑制した基材10と、基材10の中央部分である背当部11と、背当部11の両側からなる両端部分を上向きに突出した突出部12と、背当部11及び突出部12の境界近傍を略ハの字状に湾曲させる湾曲部13と、を備える。【選択図】 図1