The Brown and Clear Delta Optical Glasses from Proof are a great medium fitting frame that will suit both male and female. They have a timeless look that is fashionable without being over the top. The Delta is part of the Eco Collection, made from cotton-based acetate which in time when your glasses have seen its last leg they are fully biodegradable. Each pair of frames comes a wood box for storage and a microfiber pouch to protect and clean your lenses. With each purchase these eco-friendly frames help someone in need. Prescription ready so you can start wearing them ASAP!