Love these glasses!!!! Fit perfect, light, great outside for everything!!!! My buddy has the Zane and he wants these so bad!!!! Only other thing as awesome as the glasses was the time it took to get them. Ordered on Wednesday by 11 am, and had them by 1015 the next day (granted I paid for overnight shipping)!!!! Bottom line glasses are great and backcountry is just as AWESOME!!!! THANKS GUYS!!!!