Ashworth Performance Mesh Tonal Stripe Polo. The New AWS Tonal Stripe Knit is the perfect ultra-light knit shirt. The Base Tech Layer in Ashworth's unique Ashworth Weather Systems 3 layer performance system specializing in body moisture management by keeping the skin dry. . Short open sleeve three button shirt with solid flat knit rib collar and dropped tail. Ashworth AWS heat transfer between the shoulder blades, Ashworth AWS patch on the right sleeve hem and AWS tab on the left side. 100% polyester