Specification as follows:
1. All of our products have passed CE certification
2. Frames are made of  TPU
3. Lenses are made of PC (or PC sheet) materials The lens can be single lens and double lens; Single lens with reinforcing and anti-scratch ; Double lens with outside lens reinforcing, anti-scratch and anti-fog for lens inside ; The lens can be the spere or cylindrical.
4. Lens color: clean, gray and any colors are available
5. Frame color: full color and double are available
6.Foam includes single layer, dual-layer and multi-layer. Using high density ventilated as material.
7. Excellent flexibility strap adjusts freely; buyers can select straps which are anti-slip or common. The strap can be printed the LOGO of the customers.