Introducing the Ray-Ban RB3721 sunglasses, a refined expression of the brand's iconic design. This unisex square, full rim metal frame balances modern edge with timeless craftsmanship. The frame is paired with adjustable nosepads for a customised fit, and the 59mm lens size, 17mm bridge, and 145mm temples ensure comfortable wear from dawn to dusk. An emblem of authentic designer sunglasses, the RB3721 invites effortless confidence wherever the day takes you. Crafted with a metal front and temple, the RB3721 emphasizes durability and a precise silhouette. The polycarbonate lenses offer clear, lightweight optics and the adjustable nosepads provide a personalised fit across a range of face shapes — especially flattering on round, oval, long, or narrow faces. With its classic Base 6 curve and harmonious proportions, this frame pairs timeless elegance with everyday wearability. Available in four striking finishes: Black On Black, Black On Gold, Black On Silver, and Brown On Gunmetal. Each option preserves the sleek, metallic lines that define the RB3721, letting you tailor the look to your wardrobe and mood. As a UK-based luxury retailer, Ardor Eyewear is an official stockist of Ray-Ban, guaranteeing authenticity, genuine manufacturer packaging, and competitive pricing. With expert service, easy online ordering, and premium quality, you can shop confidently for authentic designer eyewear. Explore the RB3721 and the broader Ray-Ban collection at Ardor Eyewear today, and enjoy a seamless, brand-forward shopping experience that mirrors the confidence of wearing true luxury eyewear.