The Arc 3D constructed denim uses twisted seams and inseams to create an asymmetric fit that âturnsâ around the leg. This architecturally inspired pant, cut using paper patterns that create depth and volume, is unique to G-Star. Arc in soft, light-aged Alpine denim. Tapered fit: Regular fit at waist, hip and thigh; tapered from knee to ankle. Regular rise at front and back. Soft Alpine denim. 3X1 right hand twill. 10 oz. Medium weight. 93% cotton. 6% polyester. 1% elastene. Light aged. Bleached down to a bright, light, near-white.