Check the listing for details. Croakies Terra Spec Retainer: Adjustable Eyewear Retainer for Outdoor Adventures. Color: Not Available, Condition: New with tags. Listed at 16.58 USD. Keep your glasses securely in place while you explore the great outdoors with Croakies Terra Spec Retainer Eyewear Retainers. These adjustable retention straps are designed to fit most glasses and sunglasses, keeping them safe and secure during all your adventures. The Terra Spec Retainers are perfect for hiking, biking, fishing, or any outdoor activity where you want to ensure your eyewear stays put. Available in assorted colors, these retainers are a practical and stylish accessory for anyone who loves to be active in the outdoors. Don't let your glasses get lost or damaged - protect them with Croakies Terra Spec Retainers.1. Keep your sunglasses secure and stylish with Croakies Terra Spec Retainer. . 2. The Terra Spec Adj Asst O/S Eyewear Retainers are adjustable for the perfect fit HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us