A loop member for a surface fastener, comprising: a loop layer； and a base material layer, the loop layer including fusion bonded short fiber nonwoven fabric, the base material layer including calendered short fiber nonwoven fabric, the ratio of the average fineness of the fiber in the loop layer to the average fineness of the fiber in the base material layer [average fineness of fiber in loop layer] / [average fineness of the fiber in base material layer] being from 1.5 to 30, and the thickness of the base material layer being from 15 μm to 100 μm.一種用於一表面緊固件之環構件，其包含：一環層；及一基底材料層，該環層包括熔合接合之短纖維非織物，該基底材料層包括經壓延之短纖維非織物，該環層中之該纖維之平均細度對該基底材料層中之該纖維之平均細度之比率[環層中之纖維之平均細度]/[基底材料層中之纖維之平均細度]係自1.5至30，且該基底材料層之厚度係自15μm至100μm。
