The brand and manufacturer are unknown, but this item was purchased from Shop Channel. These sunglasses use Griamid TR-90 for the frame and temples, which is lightweight, flexible, and excellent at absorbing impact. They are discounted because they don't come with a case! - Frame Material: Griamid TR-90, UV protection - Lens Color: Dark Brown - Frame Color: Tortoiseshell - Design: Round - Size: Large Thank you for looking.