TR-90

Stylish flexible and light collection of TR-90 plastic

Acetate

Colorful glossy strong plastic materials  

Titanium

Super light Titanium alloy frame of highest quality metal frame and, extra durability, flexibility and cold in hot whether, for Luxury touch 

Steel 

Metal frames for maximum styling and adjustability 

Flexible Metal

Metal frame with Processed Metal alloy arms for Extra flexibility and durability