The Women's Core Baselayer from Aztec Diamond has been crafted using premium sports fabric with four way stretch, as well as shape retaining technology and a sculpted 3D pattern to ensure a perfect fit every time._Offering breathable, sweat-wicking and quick-drying properties, you can wear this staple riding top all day long while staying fresh and comfortable. Featuring 40+ UV protection, laser cut air ventilation around the torso and underarms, and a 1/4 zip fastening, there's no better layer for when the competition heats up._Breathable, sweat-wicking and quick dry fabricFour way stretch40+ UV protectionLaser cut air vents on back, sides and underarmsLong sleeves1/4 Zip fasteningSculpted 3D created pattern - retains shape after useSignature branding on frontFabric: 80% Nylon, 20% SpandexColour: Ash Blue