- Brand: NEUTRALWORKS NEUTRALWORKS - Color: White - Size: F - Specifications: Sunglasses holder Thank you for viewing. I purchased this from the official online store in June of this year and used it for running, but I'm selling it because it feels a little too big. The size can be adjusted at the back, but the hold was loose. (I think that's how it was originally made) There is a black stain on the top of the head, but it's not very noticeable. Please check the fourth photo.