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The Ray-Ban Frank RB3857 sunglasses bring a refined square metal design that draws from 1990s style while staying completely wearable today. Built on a lightweight stainless steel frame with a full-rim construction, the Frank delivers clean lines and sharp angles that work across face shapes. The square lenses are mounted in polished metal—available in legend gold, silver, and black finishes—and paired with slim acetate temple tips for comfort during all-day wear.
What sets the Frank apart is its attention to fit. Adjustable nose pads let you dial in the perfect position, whether you have a narrow bridge or need extra clearance. The 51mm lens width suits most adults, while a 48mm option is available for smaller faces. Ray-Ban built this frame to accommodate prescription lenses, so you can add your Rx and choose from polarized, gradient, or photochromic options without compromising the look.
All lenses provide UV400 protection, blocking 100% of UVA and UVB rays. Polarized variants (marked with "P" on the lens) cut glare from water, roads, and reflective surfaces—useful if you spend time driving or near the ocean. The classic G-15 green and brown lens tints preserve natural color perception, while blue and gradient options add a modern edge.
The Frank's square shape recalls the understated cool of late-'90s eyewear—think less flash, more substance. It's a frame that doesn't demand attention but earns it through proportion and finish. The metal construction keeps weight down, and the single-bridge design stays true to Ray-Ban's heritage of functional, durable eyewear. Whether you're pairing it with a button-down or a T-shirt, the Frank adapts without looking like it's trying too hard.
Product Details
Product DetailsModel
0RB3857Shape
Gender
Material
Bridge Type
Rim Type
Age Group
Color Details
Color DetailsColor Code
919658Color Description
Shiny Legend GoldFrame Color
GoldLens Color
Green Polar
Color Code
9196R5Color Description
Legend GoldLens Color
Blue
Color Code
919931Color Description
BlackLens Color
Green
Color Code
91984EColor Description
SilverLens Color
Bottle Green
Color Code
9198S2Color Description
SilverLens Color
Polar Blue
Color Code
9196BLColor Description
Legend GoldFrame Color
GoldLens Color
Photo Grey/blue Light Filter
Color Code
919633Color Description
Legend GoldLens Color
Brown
Color Code
919631Color Description
Legend GoldLens Color
Green
Color Code
9196AFColor Description
Gold LegendLens Color
Polar Purple
Color Code
9196R5Color Description
Legend GoldFrame Color
GoldLens Color
Blue
Color Code
919651Color Description
Legend GoldFrame Color
GoldLens Color
Clear Gradient Brown
Color Code
919931Color Description
BlackFrame Color
BlackLens Color
G-15 Green
Color Code
919633Color Description
Legend GoldFrame Color
GoldLens Color
B-15 Brown
Color Code
9198S2Color Description
SilverFrame Color
SilverLens Color
Blue
Color Code
919631Color Description
Legend GoldFrame Color
GoldLens Color
G-15 Green
Color Code
919651Color Description
Legend GoldFrame Color
GoldLens Color
Clear Gradient Brown
Color Code
91963FColor Description
Legend GoldFrame Color
GoldLens Color
Clear Gradient Blue
Color Code
9196AFColor Description
Legend GoldFrame Color
GoldLens Color
Purple
Color Code
9196S2Color Description
Legend GoldFrame Color
GoldLens Color
Blue
Color Code
91963FColor Description
Legend GoldFrame Color
GoldLens Color
Clear Gradient Blue
Color Code
919658Color Description
Legend GoldFrame Color
GoldLens Color
G-15 Green
Color Code
9230R5Color Description
Antique CopperFrame Color
BronzeLens Color
Blue
Color Code
9229B1Color Description
Antique GunmetalFrame Color
GunmetalLens Color
Dark Grey
Color Code
9229B1Color Description
Antique GunmetalFrame Color
GunmetalLens Color
Dark Grey
Color Code
922833Color Description
Antique GoldFrame Color
GoldLens Color
Brown
Color Code
002/GHColor Description
BlackFrame Color
BlackLens Color
Grey
Color Code
002/GHColor Description
BlackFrame Color
BlackLens Color
Grey
Color Code
001/GHColor Description
AristaFrame Color
GoldLens Color
Grey
Color Code
001/GHColor Description
AristaFrame Color
GoldLens Color
Grey
Color Code
9202B1Color Description
Rose GoldFrame Color
GoldLens Color
Dark Grey
Color Code
9202R5Color Description
Rose GoldFrame Color
GoldLens Color
Blue
Color Code
9202R5Color Description
Rose GoldFrame Color
GoldLens Color
Blue
Color Code
919931Color Description
BlackFrame Color
BlackLens Color
Green
Color Code
9202B1Color Description
Rose GoldFrame Color
GoldLens Color
Dark Grey
Color Code
919631Color Description
GoldFrame Color
GoldLens Color
Green
Color Code
919658Color Description
GoldFrame Color
GoldLens Color
Green
Color Code
9196R5Color Description
GoldFrame Color
GoldLens Color
Blue
Color Code
922833Color Description
Antique GoldFrame Color
GoldLens Color
Brown
Color Code
9196S2Color Description
Shiny Legend GoldFrame Color
GoldLens Color
Blue Polar
Color Code
91984EColor Description
SilverFrame Color
SilverLens Color
Bottle Green
Size Details
Size DetailsSize
5120-145
Size
5120-145
Size
5120-145
Size
5120-145
Size
5120-145
Size
5120-145
Size
5120-145
Size
5120-145
Size
5120-145
Size
4820-140
Size
5120-145
Size
4820-140
Size
4820-140
Size
4820-140
Size
4820-140
Size
4820-140
Size
5120-145
Size
4820-140
Size
4820-140
Size
4820-140
Size
4820-140
Size
5120-145
Size
4820-140
Size
5120-145
Size
4820-140
Bridge Width
20.00Temple Length
140.00Size
4820-140
Bridge Width
20.00Temple Length
145.00Size
5120-145
Bridge Width
20.00Temple Length
140.00Size
4820-140
Bridge Width
20.00Temple Length
145.00Size
5120-145
Bridge Width
20.00Temple Length
145.00Size
5420-145
Bridge Width
20.00Temple Length
145.00Size
5120-145
Bridge Width
20.00Temple Length
145.00Size
5420-145
Bridge Width
20.00Temple Length
145.00Size
5420-145
Bridge Width
20.00Temple Length
145.00Size
5120-145
Bridge Width
20.00Temple Length
145.00Size
5420-145
Bridge Width
20.00Temple Length
145.00Size
5420-145
Bridge Width
20.00Temple Length
145.00Size
5420-145
Bridge Width
20.00Temple Length
145.00Size
5120-145
Bridge Width
20.00Temple Length
145.00Size
5120-145
Bridge Width
20.00Temple Length
140.00Size
4820-140
Very happy n satisfied w my black/green R-B 3857
Ray Ban Frank 3857 Sunglasses
Ray Ban Frank 3857 Sunglasses
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Frequently Asked Questions
Can I get prescription lenses in the Ray-Ban Frank RB3857?
Yes, the Ray-Ban Frank RB3857 is fully prescription-ready. The full-rim metal frame can accommodate single vision, progressive, and bifocal prescriptions. You can also add polarized, photochromic (Transitions), or gradient prescription lenses. The frame's adjustable nose pads help ensure a proper fit once your prescription lenses are installed.
What size should I choose for the Ray-Ban Frank 3857?
The Frank RB3857 comes in two lens widths: 48mm and 51mm. The 51mm size (51-20-145) fits most adults and is the standard option. The 48mm size (48-20-140) is better for smaller or narrower faces. Both sizes feature the same square shape and adjustable nose pads for a custom fit.
Do Ray-Ban Frank sunglasses have UV protection?
Yes, all Ray-Ban Frank RB3857 lenses provide UV400 protection, blocking 100% of UVA and UVB rays. This applies to both standard and polarized lens options. The UV protection is built into the lens material itself, not just a coating, ensuring long-lasting eye safety.
Are the Ray-Ban Frank 3857 sunglasses unisex?
Yes, the Ray-Ban Frank RB3857 is designed as a unisex frame. The square shape and clean metal construction work for both men and women. The availability of two sizes (48mm and 51mm) and adjustable nose pads ensure a comfortable fit across different face shapes and sizes.
What's the difference between the Ray-Ban Frank and Square 1971?
Both are square metal frames, but the Frank RB3857 has a more modern, streamlined look with slimmer temples and a single bridge, while the Square 1971 features larger, more retro-inspired lenses with a vintage 1970s aesthetic. The Frank is slightly more compact and versatile for everyday wear, whereas the Square 1971 makes a bolder statement.
Can I adjust the nose pads on Ray-Ban Frank sunglasses?
Yes, the Ray-Ban Frank RB3857 features adjustable nose pads that can be widened or narrowed to fit your nose shape. You can gently adjust them yourself by holding the frame and carefully bending the pads inward for a snugger fit or outward for more space. For precise adjustments, an optical store can help ensure optimal comfort.
Compare With Similar Frames
How the Ray-Ban Frank 3857 Sunglasses stacks up against the closest alternatives we carry.
- Larger, more retro-inspired lenses for a bold 1970s aesthetic
- Iconic throwback design from Ray-Ban's archives
- Similar price range with multiple lens options
- Iconic round shape that's been popular since the 1960s
- Lightweight metal construction with adjustable nose pads
- Available in smaller 47mm size for petite faces
- Distinctive double-bridge design for added style detail
- Lightweight metal construction
- Similar price point and prescription compatibility
Read the full comparison
Ray-Ban Frank 3857 vs. Similar Metal Frames
Choosing between Ray-Ban's metal frame options often comes down to lens shape and style era. The Frank RB3857 occupies a sweet spot: modern enough for today, retro enough to feel considered.
Frank 3857 vs. Square 1971
Both frames share a square metal construction, but they speak different design languages. The Square 1971 leans hard into 1970s nostalgia with larger, television-like lenses and a more pronounced retro profile. The Frank, by contrast, draws from 1990s minimalism—slimmer temples, a single bridge, and a more compact lens that works across more settings. If you want a frame that turns heads at a vintage market or music festival, the Square 1971 delivers. If you need something that transitions from the office to the weekend without feeling costume-y, the Frank is the safer bet. Both are prescription-ready and similarly priced, so it's purely a question of how much retro you want to broadcast.
Frank 3857 vs. Round Metal 3447
The Round Metal 3447 is one of Ray-Ban's most enduring designs, worn by everyone from John Lennon to modern minimalists. It shares the Frank's lightweight metal build and adjustable nose pads, but the round lens shape is more polarizing—literally and figuratively. Round frames soften angular faces but can make round faces look fuller. The Frank's square shape, on the other hand, adds structure and works across a wider range of face types. The 3447 is available in a 47mm size for smaller faces, while the Frank starts at 48mm. Both accommodate prescriptions equally well. Choose the Round Metal if you're drawn to counterculture heritage; choose the Frank if you want a shape that's easier to pull off daily.
Why Choose the Frank?
The Ray-Ban Frank RB3857 is the frame for people who want a metal style that doesn't require a specific aesthetic commitment. It's square without being severe, retro without being dated, and light enough to forget you're wearing it. The adjustable nose pads and two size options make it one of the more accommodating fits in Ray-Ban's metal lineup. If you value versatility and a frame that won't look out of place in five years, the Frank earns its spot in your rotation.
At a Glance
Ray-Ban Square 1971 Sunglasses
Pros:
- Larger, more retro-inspired lenses for a bold 1970s aesthetic
- Iconic throwback design from Ray-Ban's archives
- Similar price range with multiple lens options
Cons:
- Larger lens size may overwhelm smaller faces
- More statement-making and less versatile for everyday wear
- Slightly heavier due to larger lens area
Ray-Ban Round Metal 3447 Sunglasses
Pros:
- Iconic round shape that's been popular since the 1960s
- Lightweight metal construction with adjustable nose pads
- Available in smaller 47mm size for petite faces
- Similar prescription-ready capabilities
Cons:
- Round shape doesn't suit all face types (less flattering on round faces)
- More vintage-specific aesthetic vs. Frank's modern versatility
- Smaller lens coverage may provide less sun protection
Ray-Ban 3647N Sunglasses
Pros:
- Distinctive double-bridge design for added style detail
- Lightweight metal construction
- Similar price point and prescription compatibility
- Flat lens profile for a modern look
Cons:
- Round shape is less universally flattering than square
- Double bridge may not suit minimalist preferences
- Slightly higher starting price