To provide a strap for utilizing by attaching to portable goods, which causes no problem on environmental pollution since the strap has biodegradability does not generate toxic gas even when being burned, and has little calorific value when burning, and which possesses necessary practical strength.

A U-shaped loop section (a) 1 which is made of a thinly braided cord-like thing with core thread inside and a U-shaped loop section (b) 2 which is made of a braided cord-like thing or a tubularly woven cord-like thing each thicker than (a), are coupled at end portions each other by heat-press bonding. A resin joint section (c) 3 at the joined portion of (a) with (b) is formed by heat-press bonding while holding the joined portion of (a) with (b) between an upside and downside resin joint section pieces. The strap which comprises (a) and (b) extending in the approximately opposite directions each other from interposition of the resin joint section 3, possesses biodegradability since the core thread and the braided cord-like thing of (a) and (b) are both made of polylactic acid fiber, and (c) of polylactic acid resin.