A highly breathable, active blue long sleeve t-shirt for men, constructed from innovative Polartec® Delta™ cooling fabric. Suitable as a versatile layer for maximum breathability and comfort for summer hiking and travel. This breathable t-shirt is the perfect antidote for arid conditions. Constructed from innovative Polartec® Delta™ Cooling Fabric, the Oryon Delta t-shirt Lite is a new experience in layering and can be worn as a base layer or sole layer as required. Polartec® Delta™ is a cooling technology designed to sit next to skin for enhanced moisture-wicking and fast-drying capability. Delta works more efficiently than conventional fabrics by elevating touch-points so that the fabric sits ever so slightly raised, rather than directly lying flat on the skin. This increases airflow, hastens moisture dispersal, and reduces the cling of the fabric when wet.