Product description

  • Oval grey full-rim frames deliver understated elegance
  • Strong yet lightweight metal build
  • Violet bio-based nylon lenses with a classic finish
  • Provides 100% UVA and UVB protection for advanced sun defence

Ray-Ban redefines retro with the RB3757 Kai Bio-Based sunglasses. These oval unisex sunglasses feature soft, rounded contours in sleek grey, infusing timeless elegance with a contemporary edge. Adjustable nose pads ensure a precise and comfortable fit, while the violet classic lenses crafted from bio-based nylon add a pop of bold personality. A perfect blend of lightweight design and unisex style, this modern update is as versatile as it is iconic.

Frame measurements

  • Frame width

    133 mm

  • Bridge width

    15 mm

  • Lens height

    34 mm

  • Lens width

    56 mm

  • Side length

    145 mm