TBP recommends that if you don't already wear glasses then using a pair of safety glasses is a must for hiking off-trail.
 
Radians Mirage™ Safety Eyewear offers a sleek design which allows for a perfect fit for both men and women. Weighing less than one ounce makes it very comfortable for an all day wear.
 
Sleek, lightweight design offers a comfortable fit.
Optically correct and distortion free lenses.
Economical dual wraparound 9.75 base lens provides near perfect orbital seal.
Protective polycarbonate lens provides impact resistance.
Weighs less than 1 ounce.
Safety Glass meets ANSI Z87.1+ standards and provides 99.9% UV protection.