SAIGO Glasses Strap Anti-Slip Silicone Eyeglass Strap Eyewear Retainers Sports Elastic Soft Sunglass Cord Holder for Men Women 2PCS

Since having glasses slipping is a huge issue in my case while having some outdoor activities, I tried other similar products before. To no avail. This one, however, is different, because:1. Quality is impressive. There is no chemical smell either.2. It sits comfortable behind the ears and doesn't torture my scalp.3. It works like a charm!!Highly recommended.

they are very small , fits very tight for an adult

I like these. Don't have to worry about these coming off from being saturated with sweat. Since i work outdoors

Got this to ride coasters. Easy to install, keeps my glasses secure, but ears end up hurting after awhile (due to the strap protruding)

It’s a little difficult to put on the first few times, but once it’s done, it holds my glasses in place. I got them to be able to work out in my glasses- before, my glasses would slip off my face because of the sweat and it was annoying to keep pushing them up while running. This solves my issue and isn’t very noticeable, as I have thick black hair. When I take this rubber band off after working out, I immediately notice a difference and my glasses start to slip off again lol. This is a good product that it does its job well and in addition, it’s comfortable.