In reply to Lil_Pete:
Wait and see with the Adidas glasses. I never got the right inserts prescription glasses. Double focus etc. Tried several times, different shops / ophthalmologists. Did cost a fortune. Because the inserts are that expensive I thought it was wise to get two pairs of the adidas glasses + frames with different colors. Beside that the inserts didn’t work, the rubber pads of one frame came of and the coating of the glass does come of (8 weeks high altitude). Changed to Julbo explorer. No deteriorating of the glasses so far. But no inserts any more.