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About the Frame

Tortoise Oversized Grandpa Square Eyeglasses

Our tortoise Sheldon eyeglass frames are the perfect pair of glasses for anyone who enjoys the classic look. These iconic frames are a must-have for anyone looking for a one-frame-fits-all. These oversized, trapezoid eyeglasses go perfectly with all of your wardrobe essentials, taking you from day to night with their lightweight, plastic material. Get free high-quality 1.61 hi-index lenses with your tortoise Sheldon frames! Styles: Grandpa, Oversized, Thick, Classic, Geek-Chic


  • Quality 1.61 High-Index Lenses Included
  • 100% UV400 (UVA & UVB) Protection
  • Free Anti-Reflective and Anti-Scratch Coatings
  • Available for Single Vision Lenses only

Frame Specs

Basic Information

  • Unisex
  • Plastic
  • 20g
  • Medium


More fit details
  • 135mm
  • 45mm
  • 58mm
  • 16mm
  • 145mm
  • 58
  • 16
  • 145
  • (in millimeters)

Lifestyle Photos

  • Lifestyle photography #1 of Sheldon in Tortoise with Clear Eyeglass Lenses
  • Lifestyle photography #2 of Sheldon in Tortoise with Clear Eyeglass Lenses

Customer Reviews

4.9 (92 reviews)
96% Recommended
  • Yesglasses's review image
  • Yesglasses's review image
  • Michael C.
    • Amazing Quality
    • Beautiful Style

    This is actually my second pair of this particular frame (Sheldon) that I ordered. My first pair were green frames with medium green tinted lenses. This time I ordered clear frames with medium purple tinted lenses. I could not be any happier with my purchase. So far, I have ordered six pair of glasses from Yesglasses! They are the best!

    • Yesglasses's review image
    Color: Clear / Medium Purple Jul 01, 2024
  • Dale D.

    Glasses are really nice quality, the tinted lenses were a bit lighter than I expected but still exactly as ordered.

    Color: Pumpkin / Light Orange Jun 06, 2024
  • Kate B.
    • Perfect Fit

    Love these frames! I have a wide face and it’s a struggle to find frames that fit. I love a thicker tortoise frame without any extra embellishments. 10/10 perfect.

    Color: Tortoise May 02, 2024
  • Keri S.
    • Amazing Quality
    • Beautiful Style
    • Perfect Fit

    These are absolutely amazing. I love everything about them. I bought another pair from another company and will never go back. This company is where I will always buy me glasses.

    Color: Black Mar 02, 2024

Customer Reviews


Medium (Total width: 135 mm)

We classify our frames as narrow (below 130 mm), medium (130 - 137 mm), and wide (above 137 mm) according to the frame width. Please select your frame according to the following width standards. You can also use the 'filter' function on category pages to select your frame size.