Shinkoda Kids Glasses Strap Sport Baby Sunglasses Holder Strap for Boys Girls, Set of 6 Color

My toddler was able to pull off the straps off his shades immediately

Comfortable and efficient straps. Very effective for wearing and not losing sunglasses.

These glasses straps hold my glasses on firmly and they don't fall off the glasses. Perfect for use when you're outside, hiking or whatever.

Never lost any glasses on trip. I was even able to wear my regular glasses with my sunglasses or readers. Enough colors to coordinate with outfit

I've tried other types of glasses straps. The little rubber loop slips over the end of the side pieces (temples) of glasses, and then you pull to tighten it. But soon the loops don't hold tight (and you can't tighten them). The glasses then slip out of the strap and fall to the ground. In contrast, the Shinkoda straps hold onto the temples, and the glasses never slip out. If you don't mind the multicolors, these are topnotch.