Darller 2 Pcs Sport Eyewear Retainer Adjustable Unisex Sunglass and Glasses Holder Retainer Straps Durable Material --- The eyewear retainer are made of SBR material. It is wear-resistant, anti-slip, anti-collision, good breathability, comfort and waterproof. Special Design --- The sunglass retainer is flexible material and professional sewing techniques. It can better keep the glasses from slipping, beautiful and practical. Great Value --- The glasses retainer does not soak up sweat, get dirty, stink or fray and keeps your eyewear secure; Ideal for fishing, biking, hiking, rock climbing, snow skiing and great outdoors. Product Size --- Glasses straps size: Length:33.5cm, Width:2.5cm, Thickness: 2.5mm Risk Free --- Quality guarantee and 5-star customer service. If you are not completely satisfied with your sunglass straps simply let us know and we will do our best to solve your problem. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!