UPPER MATERIAL FOR SPORTS SHOES

摘要

PROBLEM TO BE SOLVED: To provide an upper material for sports shoes having light weight without developing an abrasion wear problem and capable of improving the compression feeling to the foot and the comfortableness of the environment in the shoe. SOLUTION: This upper material is a cloth having a three-dimensional structure composed of the front and back textures connected with each other through connection threads. The constituent fiber is a hollow fiber having a #-shaped cross-section with a hollowness of 5-30% and a non-circularity degree of 1.5-2.5 and made of a polyamide thermoplastic resin having a weight-average molecular weight of >=2.0×10<4> . The cloth has a density of <=0.5g/cm<3> and a thickness of 1-10mm.