Ray-Ban verified reseller

Product description

  • Square brown frames with a structured silhouette
  • Lightweight metal construction
  • Gradient lenses with 100% UVA/UVB protection
  • Sunglasses with adjustable nosepads for all-day comfort in bright conditions

The RB3721 sunglasses redefine modern sophistication with their square brown frames for a sharp, structured look. Made from lightweight metal, they offer a fine blend of durability and style. These square unisex sunglasses feature classic gradient lenses that add a polished touch while ensuring 100% UVA and UVB protection. Designed for unisex wear, these gradient unisex sunglasses also come with adjustable nosepads for a secure and comfortable fit.

  • Prescription sunglasses lenses available.
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Frame measurements

  • Frame width

    141 mm

  • Bridge width

    17 mm

  • Lens height

    45 mm

  • Lens width

    59 mm

  • Side length

    145 mm

Prescription sunglasses

Our standard delivery service is 7-10 working days pending prescription validation and availability.

Orders under £35 are subject to a delivery charge.

See our delivery page for more information.

Non-prescription sunglasses and accessories delivery

We offer next day delivery as standard. Orders received before 6pm, Monday to Friday, will be delivered the next day*. 

Orders under £35 are subject to a delivery charge.

See our delivery page for more information.

*Postcode exclusions apply.

Returns

Sunglasses and accessories can be returned up to 100 days post purchase for a full refund.

See our returns page for more information.