Introducing the Girlfriend Collective Rib High-Rise Bike Short. Ist. Core. Helpers. StringHelper. RemoveHtmlTags("{@@=Ist. Core. Helpers. StringHelper. ToProperCase("You don't have to bike to wear bike shorts, but biking cuts down on greenhouse gas emissions, reduces road congestion, and is a pollution-free mode of transport. Just saying. Made from recycled water bottles for working out and looking cute. She is wearing a size S. Washing Instructions: Machine Washable Cold. Composition and Material: 79% RPET, 21% Spandex.. Colour: grey