KSACLE Adjustable Eyeglasses Strap, 4 Pack No Tail Universal Sports Eyewear Retainer Rope, Unisex Anti-slip Glasses Lanyard for Outdoor Running Cycling Driving (7.9-12.2 inch, Black)

these work great for keeping glasses on while jet skiing. I like that they're the tighter fit, and not the ones that hang lose in the back of your head. Just feels way more secure. were fairly easy to put on, and do not come off easily once on. We will be ordering more as everyone keeps stealing mine lol.

They work great! They hold my sunglasses on in the pool

great for normal glasses... unfortunately I bought them for sunglasses and my Ray ban legs are kinda thick... takes awhile but you can get them in partially...

I purchased these to help a girl on my daughters basketball team not loose her glasses during games. They work well and are easy to adjust.

Great product but

These straps are made well enough, and they adjust OK. They'd probably be great for high impact sports and exercise where you need to keep your glasses from falling off and being trod upon. All I need, though, is something to keep my glasses from slipping forward because my cheap earpieces keep bending out of shape under the weight of clip-on sunglasses and fitover blue blocking glasses. For that, little clear silicone slip-on ear grips work much better and don't require yoga maneuvers to put them on and take them off. Also, when the strap is just tight enough to keep my glasses in place, it's also tight enough to hurt my ears and nose; silicone grips are painless. If you need eyeglass straps for sports, these are probably as good as any, but I don't recommend them for general wear

They stay on my glasses really well and adjusted to the size I needed really well. Well worth the money.

I'm kind of an old guy, so I don't do a whole lot of active sports. In fact I wear reading glasses, half glasses, most of the time. I recently decided to let my hair grow long, like I had it back when I was in my twenties. I was struggling to keep it out of my mouth, especially when I was eating, and I tried various things, little hair clips, bobby pins, and so forth. I didn't especially like the way they looked, so I was pretty much limited to elastics for ponytails. Then I got the idea of putting one of these straps on my reading glasses and using the combination to keep my long hair in place behind my ears. It works just great, and I'm so pleased.

Mis mejores inversiones para mis lentes. Tengo par actividad. Trabajo, cuso diario. Deportivos . Carpinteria y soldadura y se ajustan bien

Me gustó bastante, muy cómodos, no se caen ni se mueven mis lentes en lo absoluto, no los he probado en situaciones tan complicadas tampoco, solo el ejercicio normal, como hacer sentadillas, lagartijas y con el sudor y todo no se mueven. No hay que estarselos acomodando todo el tiempo. El único pero es que me hubiera gustado poder ajustarlos a ser 1 o 2 cm más chico, supongo que depende mucho de las patillas de tus lentes pero es el unico pero que les pongo

no ajusta suficientemente