Mini Slim fits over prescription frames not exceeding:
125mm in width / 35mm in height
4 15/16" w x 1 3/8" h

Slim Line fits over prescription frames not exceeding:
133mm in width / 39mm in height
5 1/4" w x 1 1/2" h

Wide line fits over prescription frames measuring less than
138 mm in width / 36 mm in height
5 7/16" in width / 1 3/8" in height

Pilot fits over prescription frames not exceeding:
138mm in width / 48mm in height
5 7/16" w x 1 7/8" h

Aviator fits over prescription frames not exceeding:
140mm in width / 51mm in height
5 1/2" w x 2" h

---