Fantastic product, holds my sunglasses exactly where I want them without being bulky or have a "tail"! Stylish colors, fast delivery and incredibly durable and waterproof!Buying some for all my glasses!Adjustability is best attribute. I wanted to prevent my progressive lens glasses from slipping out of position. However this item did not adjust tightly enough to accomplish that so I will be returning it.The Woosh would be ideal for those who wish to prevent sunglasses or reading cheaters from falling or getting lost— the description presented in Amazon listingSuper lightweight but I wish it extended a little longerLove love love these! They are perfect for work and sun glasses! Will definitely buy again!Great deal for nice cables. Works great on Oakley ChainlinksSlides off earpieceDon’t work! Totally with out value or use!The Woosh plastic cord has rubber sliders that fit snugly over the end tips of your glasses and hang on the back of your neck keeping your glasses in place. Woosh cords are made of stiff plastic wires and are a tight fit. I have worn the holder with dress shirts and a sports coat and it does not interfere with the collar and is very comfortable to wear. Although the old style cord that hung over the side of your glasses was a looser fit and was easier to remove your glasses without bending your ears down.The plastic wire cords are thin plastic and I am not sure if they will be durable over prolonged use without breaking or coming loose from the rubber sliders. I also have concerns that the rubber sliders will lose traction after prolonged use and will not hold the plastic cords in place, I will update this review in a few months if I have any problems. The adjustment tabs are difficult to use, one side seems to function but not the other and I have to push the wire through the adjustment tabs with firm presure. The Woosh holding cord is an innovative design to hold your glasses in place whether their on your face or being held below your neck, so far I like the cord which holds my glasses firmly in place, recommended.gd buy