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Oakley Size Guide
Oakley Size Guide — Sunglasses, Helmets & Ski Goggles
Oakley is an American brand founded in 1975 in Flint Ridge (California) by James Jannard. Pioneers in performance optics, Oakley is globally recognized for its Prizm™ lens technology, ultra-light O Matter™ frames, MIPS helmets, and Flight Deck ski goggles. Today owned by Essilor Luxottica.
Sources: official Oakley guides (oakley.com), SportRx, Oakley Forum, SkatePro, Switchback Travel. All measurements are in mm (glasses) and cm (helmets).
Part 1 — Sunglasses
Alpinstore Anti-Return Tips — Sunglasses
- Read Oakley dimensions: the numbers engraved inside the temple indicate in order: lens width (mm) — bridge width (mm) — temple length (mm). Example: 55 ▢ 17 133 = lens 55 mm, bridge 17 mm, temple 133 mm.
- Total frame width = lens width × 2 + bridge width. Example: 55 × 2 + 17 = 127 mm. This is the total width in front of your face.
- Standard Fit vs Low Bridge Fit: if your glasses slide down your nose or touch your cheekbones, choose a “Low Bridge Fit” or “Asian Fit” version. These versions have thicker nose pads and a raised bridge.
- XS, XL in the name: at Oakley, XS in the name = smaller frame (small faces or children), XL in the name = larger frame (large face or increased coverage).
- Prizm™ lenses: Prizm lenses enhance contrast and color perception based on the environment (Prizm Road, Prizm Trail, Prizm Snow, Prizm Golf…). This is not just a tint — each lens is optimized for a specific environment.
1. Understanding Oakley Measurements
Lens Width (A)
49–65 mm
Horizontal distance from one edge to the other of the lens. 1st number engraved on the temple.
Bridge Width (B)
14–22 mm
Distance between the 2 lenses, resting on the nose. 2nd number (after the Oakley symbol).
Temple Length (C)
120–145 mm
Length of the temple from the hinge to the end. 3rd number.
Total Frame Width
A×2 + B
Complete width in front of the face. Compare with the width of your face.
2. Oakley Sunglasses Sizes by Face Category
| Category | Lens Width (A) | Total Frame Width | Typical Profile | Representative Models |
|---|---|---|---|---|
| XS / Youth | 48–52 mm | ~116–122 mm | Children, pre-teens, very small faces | Frogskins XS, Holbrook XS, Flak XS, Fives Squared |
| Small | 52–55 mm | ~122–129 mm | Small face, women, narrow morphology | Frogskins XS, Holbrook XS, Half Jacket 2.0 |
| Medium (standard) | 55–58 mm | ~127–134 mm | Standard adult face H and F, most common | Holbrook, Frogskins, Gascan, Manorburn |
| Large / XL | 59–62 mm | ~135–142 mm | Large face, increased coverage, large build man | Holbrook XL, Flak 2.0 XL, Sutro, Turbine |
| Extra Large | > 62 mm | > 142 mm | Maximum coverage, visor style, sport | Sutro Lite Sweep, Radar EV Path, Flight Jacket |
3. Oakley Sunglasses Range — Key Models
| Model | Lens (mm) | Bridge (mm) | Temple (mm) | Total Width | Category / Use |
|---|---|---|---|---|---|
| Frogskins | 55 | 17 | 133 | ~127 mm | Lifestyle Medium, icon, retro sport style |
| Frogskins XS | 52 | 17 | 128 | ~121 mm | Lifestyle Small, small faces, teens |
| Holbrook | 55 | 18 | 137 | ~128 mm | Lifestyle Medium, best-seller, versatile |
| Holbrook XL | 59 | 18 | 137 | ~136 mm | Lifestyle Large, large face, good coverage |
| Flak 2.0 XL | 59 | 12 | 133 | ~130 mm | Sport Large, trail, bike, maximum protection |
| Radar EV Path | 61 | 13 | 131 | ~135 mm | Sport XL, cycling, running, peripheral visibility |
| Sutro | 57 | 21 | 130 | ~135 mm | Sport/Lifestyle XL, visor, cycling & lifestyle |
| Gascan | 60 | 17 | 128 | ~137 mm | Lifestyle Medium-Large, square shape, coverage++ |
| Encoder | 55 | 22 | 140 | ~132 mm | Sport/Lifestyle, modern minimalist style |
The indicated dimensions are standard values. Some models exist in Asian Fit or Low Bridge Fit versions with different bridge measurements (+2 to +4 mm on the bridge). Total width = (lens width × 2) + bridge.
Part 2 — Ski Helmets
Alpinstore Anti-Return Tips — Helmets
- Always measure your head circumference with a soft tape placed at the widest point (above the ears, at the forehead). Measure twice.
- If your head circumference is between two sizes: choose the larger size if you have a round head, the smaller size if you have an oval head. BOA systems allow for fine adjustment over a 1 to 2 cm range.
- MIPS: the MIPS (Multi-directional Impact Protection System) is an internal liner that slightly slides during an oblique impact to reduce rotational forces on the brain. It does not affect wearing comfort — always prioritize a MIPS helmet.
- Helmet/Goggle Compatibility: Oakley Flight Deck, Fall Line, and Line Miner goggles are designed to integrate perfectly with Oakley MOD helmets. Helmet size = goggle size for optimal fit.
4. Oakley Helmet Size Chart
Measurement = head circumference in cm, just above the eyebrows and ears, at the widest point. Sources: SkatePro, Switchback Travel (data confirmed on MOD5 and MOD3).
| Size | Head Circumference (cm) | Head Circumference (inches) | Profile |
|---|---|---|---|
| S | 51 – 55 cm | 20.1” – 21.7” | Small face / small head, young adults |
| M | 55 – 59 cm | 21.7” – 23.2” | Standard adult size, most common |
| L | 59 – 63 cm | 23.2” – 24.8” | Large adult head |
| XL | 61 – 65 cm | 24.0” – 25.6” | Very large head (depending on model) |
Note: XL is not available on all models. The MOD5 is available in S/M/L only. The BOA systems adjusted inside allow for a range of adjustment of ± 2 cm around the chosen size.
5. Oakley Ski Helmet Range
| Model | Available Sizes | MIPS | Closure | Specifications |
|---|---|---|---|---|
| MOD5 | S / M / L | Yes | BOA 360 + magnetic Fidlock | 11 adjustable vents, premium Polartec® liner, modular |
| MOD3 | S / M / L | Yes | BOA 360 + magnetic Fidlock | 6 vents, removable liner, modular brim system |
| MOD7 | S / M / L | Yes | BOA 360 + magnetic closure | Compatible with magnetic attachment goggles, high-end |
| MOD1 PRO | XS / S / M / L / XL | Yes | BOA + classic closure | Accessible range, good quality/price ratio, 5 sizes |
Part 3 — Ski Goggles
Alpinstore Anti-Return Tips — Goggles
- Choose goggle size according to helmet size: S/XM for S helmet, M for M helmet, L for L helmet. A goggle that is too large will leave a gap between the goggle and the bottom of the helmet. A goggle that is too small will be crushed and uncomfortable.
- Face Template: Large goggles (Flight Deck L, Fall Line L) fit a standard adult male and large face. Medium/XM goggles (Flight Deck M, Fall Line M, Line Miner M) fit better on female, smaller, or medium faces.
- Cylindrical vs Spherical Lens: Cylindrical lens = curvature on 1 axis only, flatter profile, more accessible price, some reflections. Spherical lens = curvature on 2 axes, conforms to the shape of the eye, better optics, less peripheral distortion.
- Prizm Snow: Prizm Snow lenses come in several tints depending on brightness: Prizm Snow Torch (cloudy, low light), Prizm Snow Sapphire (bright sunlight), Prizm Snow Jade (variable brightness), Prizm Snow Hi-Pink (women, variable brightness).
- OTG (Over The Glasses): Oakley Flight Deck, Fall Line, and Line Miner goggles have discreet notches to wear prescription glasses underneath the goggle.
6. Oakley Goggle Size Chart
| Goggle Size | Typical Profile | Compatible Helmet Size | Available Models |
|---|---|---|---|
| S / XS | Children, teens, small face | S | Line Miner S, Target Line S |
| M / XM | Female face, medium, standard adult | S to M | Flight Deck M, Fall Line M, Line Miner M, Flight Tracker M |
| L / XL | Standard to large male face | M to L | Flight Deck L, Fall Line XL, Line Miner L, Flight Path L |
The letter after the name indicates the size of the goggle at Oakley (e.g.: Flight Deck L vs Flight Deck M). “XM” (Extra Medium) = slightly between S and M. Goggles of the same range (Flight Deck L and Flight Deck M) have the same design but different dimensions.
7. Oakley Ski Goggle Range
| Model | Lens | Sizes | Lens Change | Use / Specifications |
|---|---|---|---|---|
| Flight Deck | Spherical frameless | M and L | Ridgelock™ | Maximum field of vision, icon of the Oakley ski range |
| Fall Line | Torric (cylindrical) | M and XL | Ridgelock™ | Large field, traditional sport design, compatible with all helmets |
| Line Miner | Torric (cylindrical) | S, M and L | Ridgelock™ | 3 sizes, extended field of vision, popular freestyle/freeride |
| Flight Tracker | Torric (cylindrical) | S and M | Ridgelock™ | Medium face, rounded design, accessible |
| Flight Path | Torric full-rim | L | Ridgelock EV | Super G/Slalom design, optimal upward visibility |
| Target Line | Flat cylindrical | S, M and L | Standard | Accessible range, good quality/price ratio, 3 sizes |
8. Oakley FAQ
How can I tell if my Oakley sunglasses are authentic?
An authentic pair of Oakley has three key indicators: (1) the code engraved inside the temple starts with “OO” followed by 4 digits (model number), then a dash and a colorway number. (2) The Oakley logo is sharp and symmetrical. (3) The lenses carry the UV 400 certification and the “OAKLEY” marking in full on the lens (in UV light). Counterfeits often omit the OO code or have improper engravings.
What is the difference between Prizm and Prizm Polarized?
Prizm lenses amplify certain wavelengths to enhance contrast and definition based on the environment (road, trail, snow, water…). Prizm Polarized lenses combine this technology with a polarized anti-glare filter that eliminates reflections from reflective surfaces (water, wet road, snow…). For skiing and water sports, Prizm Polarized is recommended. For road biking and trail, Prizm (non-polarized) allows for slightly better depth perception.
Flight Deck M or L — how to choose the right goggle size?
The simplest rule: goggle size = helmet size. If you wear a M helmet, take a Flight Deck M. If you wear an L helmet, take a Flight Deck L. Outside of the helmet, consider your face: the Flight Deck L is more suited for a standard large adult male face. The Flight Deck M fits better for women, smaller faces, or those who prefer a less imposing goggle. If you have a large nose or a very wide face, the L will be more comfortable.
Can I use my Oakley goggles with a helmet from another brand?
Yes. Oakley goggles are compatible with the vast majority of helmets on the market thanks to their adjustable strap and triple-layer foam that adapts to different helmet shapes. Optimal compatibility (“no gap”) is guaranteed between Oakley goggles and helmets of the same size. With other brands, a slight gap may appear depending on the shape of the helmet. In practice, Oakley goggles are also known to be very compatible with Smith, POC, and Giro.
Oakley data based on official guides (oakley.com/size-chart), SportRx, Oakley Forum (data engraved on confirmed frames), SkatePro (helmets), Switchback Travel (MOD5 test). The dimensions of the glasses are standard values — some limited editions or colorways may have slightly different measurements. Helmet sizes apply to the entire MOD range unless otherwise indicated.
