Northwave res light short sleeve topthis res light top from northwave is made of resistex bioceramic a technical fabric that regulates body heat and moisture transfer to ensure long lasting freshness and protection from harmful ultraviolet uva and uvb rays highly breathablethe 3d highly breathable mesh structure enhances breathability while the 4 needle flatlock seams provide superior comfort this top is finished off with a round neck and short sleeves featuresmain material resistex biocer