Eyewear retention devices can be a great way to keep your eyeglasses in place while you're running. There are a few different types of eyewear retention devices, and each has its own advantages and disadvantages. Here are some of the best eyewear retention devices for running: The Loop - The Loop is a simple eyewear retention device that uses elastic bands to hold your glasses in place. It is lightweight and easy to use, and it is available in both male and female versions. The Strap - The Strap is a more advanced eyewear retention device than the Loop, and it uses metal clips to secure your glasses in place. It is more expensive than the Loop, but it is also more durable and stylish. The Headband - The Headband is a versatile eyewear retention device that can be used with both prescription and non-prescription glasses. It uses elastic bands to secure your glasses in place, and it comes in both male and female versions. The Crosslink - The Crosslink is a unique eyewear retention device that uses Velcro to secure your glasses in place. It is lightweight and easy to use, but it may not be suitable for all types of glasses. whichever option you choose, make sure to get the correct size! And don't forget to stock up on supplies - you're likely going to need them sooner than you think! :)