When choosing a pair of sunglasses for running I think about a few key things:
Firstly, are the lenses made well and are they durable? UV Protection – will they actually protect my eyes from harmful rays?
Also, will they stay put on my face while I am running, especially on technical terrain? Will they stay ‘fog free’?
Comfort is key of course, and lastly on the list, in an attempt to make me not look too vain (but really we all know its number one on the list), do they make me look cool?