CHINOOK TECHNICAL BANDANA S/M Highly breathable, lofted fibers trap air, retaining body heat. 3 panel articulated PolartecTM micro fleece. Windbloc insert protection, windproof and waterproof, offering the ultimate protection against the harshest elements. 100% polyester. Face Toaster: VelcroTM closure, perforated breathing panel, lycra binding around face.Bandana: Breathable face and neck shield, perforated breathing panel, VelcroTM closure.Multi-Tasker: LycraTM binding around face, perforated breathing panel, shaped bottom covering neck.