The Calvin Klein CK22530S sunglasses feature a butterfly-shaped acetate frame in Havana brown, designed with a feminine aesthetic. These photochromatic lenses automatically adjust their tint based on UV light exposure, transitioning from lighter to darker shades for optimal eye protection in varying light conditions. The frame measures approximately 140 mm in width with a 55 mm lens height and a 20 mm bridge width, weighing around 35 grams for comfortable all-day wear. Constructed from high-quality acetate material known for its durability and flexibility, these sunglasses provide reliable UV 400 protection, blocking 100 percent of harmful UVA and UVB rays. The butterfly frame shape is engineered to complement various face shapes including round, oval, and square faces by creating balanced proportions and elongating facial features. The photochromatic technology ensures consistent visual comfort whether in bright sunlight or overcast conditions, with lens tint adapting within seconds to changing light environments. The Havana brown color offers a sophisticated neutral tone that pairs well with diverse wardrobe choices and skin tones. The temple arms feature subtle Calvin Klein branding and are designed for a secure fit without pressure points. These sunglasses are suitable for daily use, outdoor activities, and travel, providing both functional eye protection and timeless style. The acetate construction ensures long-lasting performance with resistance to warping and discoloration over time. The nose pads are integrated into the frame design for consistent comfort and stable positioning. Complete with a protective case for storage and transport, these sunglasses maintain their optical clarity and structural integrity through regular use.