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Original Penguin THE SLY Eyeglasses
Original Penguin THE SLY Eyeglasses
Add To Cart For Lowest Price
$120.31
$188.00

You save 36%

Color

Size

ADD PRESCRIPTION

Lenses from $29.99 · Ready in 2–7 business days

Original Penguin THE SLY Eyeglasses

CG - Cargo / 53

  • Ships within 1 to 5 Days

    Shipping information is provided by the manufacturer.

K_PEO_SLY_CG_53
ADD PRESCRIPTION

Lenses from $29.99 · Ready in 2–7 business days

Original Penguin THE SLY Eyeglasses Original Penguin THE SLY Eyeglasses Original Penguin THE SLY Eyeglasses
Original Penguin THE SLY Eyeglasses
Original Penguin THE SLY Eyeglasses
Original Penguin THE SLY Eyeglasses
  • Free Shipping
    Free Shipping
  • Price Match
    Price Match
  • Easy Returns
    Easy Returns
  • Licensed Opticians
    Licensed Opticians
ADD PRESCRIPTION

Lenses from $29.99 · Ready in 2–7 business days

Add To Cart For Lowest Price
$120.31
$188.00

You save 36%

Color

Size

CG - Cargo / 53
CG - Cargo / 53

*Swipe to view more color variants

  • Free Shipping
    Free Shipping
  • Price Match
    Price Match
  • Easy Returns
    Easy Returns
  • Licensed Opticians
    Licensed Opticians
DESCRIPTION RATINGS & REVIEWS PRESCRIPTION GUIDE

The Original Penguin THE SLY Eyeglasses bring classic browline style into modern everyday wear. This prescription-ready frame pairs a stainless steel front with acetate temples in three versatile finishes—Black, Cargo (tortoise), and Navy—each offering a different take on retro-inspired menswear style.

The square lens shape works well for round or oval faces, adding definition without harsh angles. At 53mm or 55mm lens width, the frame fits most adult men comfortably, with an 18mm bridge and temple lengths of 140mm or 145mm depending on size. Adjustable silicone nose pads let you dial in the fit, preventing slipping and distributing weight evenly across the bridge—especially helpful if you wear your glasses all day or have a lower nose bridge.

Stainless steel delivers durability without the weight. It resists corrosion, holds its shape through daily wear, and costs less than titanium while offering many of the same benefits. The full-rim construction secures your prescription lenses and accommodates stronger prescriptions, progressives, or bifocals. Spring hinges at the temples flex outward for a forgiving fit and snap back into place, reducing stress on the frame over time.

Original Penguin has been blending American heritage style with accessible design since the 1950s. The brand, manufactured by Kenmark Eyewear, focuses on frames that look vintage but wear comfortably in real life. The SLY continues that approach—it's not trying to be the loudest frame in the room, just a solid everyday pair that works with jeans, button-downs, or business casual without overthinking it.

These frames ship with a protective case and cleaning cloth, and they're backed by a manufacturer's warranty. Add your prescription lenses—single-vision, progressive, blue light filtering, or photochromic—and you're set.

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Customer Reviews

Based on 1 review
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R
Rick Babcock
Sly frames

Love them great fit good job on script

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Frequently Asked Questions

Are the Original Penguin THE SLY frames prescription-ready?

Yes, the Original Penguin THE SLY frames are fully prescription-ready. The full-rim stainless steel construction can accommodate single-vision, progressive, and bifocal lenses. You can also add lens upgrades like anti-reflective coating, blue light protection, or photochromic (Transitions) lenses to customize your eyewear for your lifestyle.

What face shapes work best with the Original Penguin THE SLY?

The SLY's square browline shape works particularly well for round and oval faces, adding structure and definition. The slightly rectangular lens shape can also soften angular features on square faces. The adjustable nose pads allow for customization across different nose bridge heights and face proportions.

What are the benefits of adjustable nose pads on these frames?

The adjustable silicone nose pads on the SLY can be positioned to match your unique nose shape and bridge height, preventing slipping and ensuring a secure fit. They distribute the frame's weight evenly to reduce pressure points and prevent red marks, making these glasses comfortable for all-day wear. This feature is especially helpful for people with low nose bridges or those who find standard frames tend to slide down.

How durable are stainless steel eyeglass frames?

Stainless steel frames are highly durable and resistant to corrosion, making them excellent for daily wear. They're lightweight yet strong, hold their shape well over time, and can last much longer than the typical three-year eyeglass lifespan when properly maintained. Stainless steel offers similar durability benefits to titanium at a more affordable price point.

What sizes are available for the Original Penguin THE SLY?

The SLY is available in two sizes: 53-18-140 (53mm lens width, 18mm bridge, 140mm temple length) and 55-18-145 (55mm lens width, 18mm bridge, 145mm temple length). The 53mm size works well for small to medium faces, while the 55mm fits medium to larger faces. Both sizes feature the same 18mm bridge width.

Is Original Penguin a reputable eyewear brand?

Yes, Original Penguin is a reputable premium lifestyle brand with roots dating back to 1955. Their eyewear is manufactured by Kenmark Eyewear and comes with a manufacturer's warranty. The brand is known for blending retro-inspired design with quality materials and comfortable construction at accessible price points. Customer reviews consistently praise Original Penguin frames for their durability, fit, and value.

Compare With Similar Frames

How the Original Penguin THE SLY Eyeglasses stacks up against the closest alternatives we carry.

This product
Original Penguin THE SLY Eyeglasses
Original Penguin Original Penguin THE SLY Eyeglasses $188.00$113.77
Original Penguin THE CLYDE Eyeglasses
Original Penguin Original Penguin THE CLYDE Eyeglasses $188.00$108.75
  • Full acetate construction for a bolder look
  • Available in 9 color options
  • Square shape similar to the SLY
View frame →
Original Penguin THE PRINCETON Eyeglasses
Original Penguin Original Penguin THE PRINCETON Eyeglasses $188.00$113.77
  • Similar clubmaster browline aesthetic
  • Metal and plastic combination construction
  • Same brand quality and warranty
View frame →
Read the full comparison

How the Original Penguin THE SLY Compares to Similar Frames

If you're considering the Original Penguin THE SLY, you might also be weighing a few other frames in the same collection. Here's how the SLY stacks up against its closest competitors in our catalog.

THE SLY vs. THE MURPHY

Both frames feature stainless steel construction and adjustable nose pads, but the MURPHY takes a different approach with its oval lens shape and smaller 46mm lens width. If you have a petite face or prefer a softer, less structured look, the MURPHY might be your pick. However, the SLY's square browline design offers more definition and works better for medium to larger faces. The SLY also comes in two size options (53mm and 55mm) versus the MURPHY's single size, giving you more flexibility in fit.

THE SLY vs. THE CLYDE

The CLYDE represents a completely different construction approach—it's full acetate rather than the SLY's metal-acetate hybrid. This gives the CLYDE a bolder, more substantial look and comes in 9 color options compared to the SLY's 3. Customer reviews for the CLYDE are overwhelmingly positive, with wearers praising its durability and style. The trade-off? Weight and adjustability. The SLY's stainless steel front is noticeably lighter, and its adjustable nose pads offer a more customizable fit than the CLYDE's molded acetate bridge. Choose the CLYDE if you want maximum style options and don't mind a heavier frame; stick with the SLY for lightweight comfort and precise fit adjustment.

THE SLY vs. THE PRINCETON

The PRINCETON shares the SLY's clubmaster-inspired browline aesthetic and metal-plastic combination construction. Both frames tap into that same 1950s heritage look that Original Penguin does so well. The key differences come down to specific sizing, color availability, and subtle design details in the browline shape. If you're drawn to the clubmaster style but want to compare exact measurements and color options, it's worth looking at both. The SLY's advantage is its proven versatility across the three core colors (Black, Cargo, Navy) that work with virtually any wardrobe.

Our take: The SLY hits a sweet spot for guys who want a lightweight, adjustable frame with classic browline style. Its stainless steel construction keeps it comfortable for all-day wear, while the adjustable nose pads ensure a secure fit that pure acetate frames can't match. If you prioritize comfort and versatility over maximum color selection, the SLY delivers.

At a Glance

Original Penguin THE MURPHY Eyeglasses

Pros:

  • Smaller 46mm lens width for petite faces
  • Softer oval shape for a less structured look
  • Same quality stainless steel construction

Cons:

  • Smaller lens size may not suit larger faces
  • Lacks the distinctive browline style of the SLY
  • More limited size options

Original Penguin THE CLYDE Eyeglasses

Pros:

  • Full acetate construction for a bolder look
  • Available in 9 color options
  • Square shape similar to the SLY
  • Highly rated by customers with multiple positive reviews

Cons:

  • Heavier than the metal SLY frame
  • No adjustable nose pads
  • May not suit those preferring lightweight metal frames

Original Penguin THE PRINCETON Eyeglasses

Pros:

  • Similar clubmaster browline aesthetic
  • Metal and plastic combination construction
  • Same brand quality and warranty

Cons:

  • May have different sizing that doesn't fit all faces
  • Limited information on specific features
  • Similar style may not offer enough differentiation