Dye i4 GSR Pro Replacement Strap Color:Grey there is always a need

there is always a need to use batteries with much higher energy density

Large 30mm lens for easy target acquisition

and putter

This TMC has been tested and found to be in working condition

EASY CLEAN

Dye i4 GSR Pro Replacement Strap Color:Grey there is always a needThe GSR Pro Strap is a quantum leap in strap design and security. The GSR gear lock system gives you precise tension control for a secure, comfortable fit. The extra wide head pad grips the back of your head, and distributes the force over a large area, ensuring ultimate grip and maximum comfort. Simply turn the dial and ratchet down your i4 or i4Pro to a precision fit. The GSR is a revolutionary step in goggle strap technology providing the ultimate