Introducing the Sweaty Betty Athlete Crop Seamless Gym Zip Up. Ist. Core. Helpers. StringHelper. RemoveHtmlTags("{@@=Ist. Core. Helpers. StringHelper. ToProperCase("An ultra-versatile layer made for every workout. It features a seamless with a slim, cropped fit and high neck, full centre zip, long sleeves with thumbholes to keep your wrist warm, as well as branded internal placket detail. Front length: 45cm / 17.5. She is wearing a size S. Washing Instructions: Machine washable. Composition and Material: Main 62% Polyamide, 38% Elastane - Mesh 60% Polyamide, 40% Elastane.. Colour: green