Model: Alden Gender: Unisex Frame Size (mm): Lens Width Bridge Temple 53 20 145 Frame Material: Acetate Frame Description: These handcrafted acetate sunglasses make vintage style accessible to all with a shape, keyhole bridge and colorways that flatter both men and women. Alden features the quintessential AO decor piece that first appeared on AO safety glasses and has captivated vintage hunters for decades. Sturdy 5-barrel hinges give the frames a robust feel and stand up to daily wear. Frame Features: Timeless shape and keyhole bridge flatter all face types Handcrafted acetate frame Features a vintage AO logo décor detail Durable 5-barrel hinges ensure lasting strength and comfort Made in the USA from premium global components Lens: AOLite™ Nylon Warranty: AO Eyewear offers a lifetime warranty on all solder points that fail due to manufacturer's defects. This warranty does not cover normal wear and tear, including scratches on the lenses, broken lenses, or damage caused by abuse or mishandling. This warranty applies only to AO Eyewear sunglasses purchased from authorized AO Eyewear dealers and is valid for the original purchaser only. Handmade in the U.S.A.