This anti-UV long sleeve shirt features 100% recycled nylon. It has a back yoke with one layer of mesh fabric and one layer of nylon fabric. 
Fabric Description: Woven | Fabric Composition: 100% Recycled Nylon | Collar: Woven collar and placket | Weight: 53 g/m2 | Branding: Pigment print | Fit: Regular fit | Snap buttons | Ventilated mesh yoke | Mesh back panel | 2-Piece sleeve | Anti-UV shaped cuff | Anti-UV extendable collar | Mesh pocketing | Center Back Length: 29″ (73.7 cm) | Imported