Product Details
Color Details
Size DetailsFrequently Asked Questions
Are the Oakley Unstoppable 9191 sunglasses prescription-ready?
What makes the Oakley Unstoppable frame so lightweight?
Do the Oakley Unstoppable sunglasses stay in place during running and cycling?
What is Oakley Prizm lens technology and how does it work?
What face shapes and sizes fit the Oakley Unstoppable 9191?
Do the Oakley Unstoppable sunglasses offer UV protection?
Compare With Similar Frames
How the Oakley Unstoppable 9191 Sunglasses stacks up against the closest alternatives we carry.
- Aviator/pilot lens shape offers a more classic, versatile look that transitions easily from sport to casual wear
- 6-base lens curvature with full-rim frame provides more wraparound coverage and wind protection
- Larger lens size suits medium to wider face shapes
- Iconic aviator shape with a feminine twist offers broader style versatility
- Full-rim metal frame construction provides a more polished, refined aesthetic
- Larger lens coverage for maximum sun protection
Read the full comparison
Oakley Unstoppable 9191 vs Split Time 4129 vs Feedback 4079
All three frames target active women who want performance eyewear that doesn't look overly sporty, but they take different approaches to that goal.
Choose the Unstoppable 9191 if: You prioritize lightweight comfort and need a frame that disappears during runs, rides, and high-output activities. The semi-rimless design is the lightest of the three and provides the best unobstructed downward view for checking terrain or your bike computer. The rectangular shape is sport-forward but clean enough for everyday wear. At $166–$239, it's the most affordable option and the best pure performance choice.
Choose the Split Time 4129 if: You want a pilot/aviator shape that leans slightly more casual while retaining sport features like Unobtainium nosepads and HDPolarized lenses. The full-rim construction offers more wraparound coverage and wind protection than the Unstoppable, making it ideal if you split time between cycling and social activities. It fits medium to wider faces better than the Unstoppable's narrow-medium fit.
Choose the Feedback 4079 if: Style versatility is your top priority and your activities are moderate-intensity (walking, casual cycling, driving). The metal aviator construction is the most fashion-forward of the three and transitions seamlessly from the gym to brunch. However, it's the heaviest option and less ideal for serious running or cycling compared to the Unstoppable's featherweight O Matter frame.
For pure athletic performance and all-day comfort during active pursuits, the Unstoppable 9191 is the clear winner. Its semi-rimless design, Unobtainium grip, and ultra-light construction make it the go-to choice for women who move hard and need eyewear that keeps up.
At a Glance
Oakley Split Time 4129 Sunglasses
Pros:
- Aviator/pilot lens shape offers a more classic, versatile look that transitions easily from sport to casual wear
- 6-base lens curvature with full-rim frame provides more wraparound coverage and wind protection
- Larger lens size suits medium to wider face shapes
- Adjustable saddle nose pads allow for customized fit
Cons:
- Heavier than the Unstoppable due to full-rim construction
- Less unobstructed downward view compared to semi-rimless design
- Slightly higher price point ($134.92–$267 vs $166–$239)
Oakley Feedback 4079 Sunglasses
Pros:
- Iconic aviator shape with a feminine twist offers broader style versatility
- Full-rim metal frame construction provides a more polished, refined aesthetic
- Larger lens coverage for maximum sun protection
- Works well for both active and dressy casual occasions
Cons:
- Heavier metal frame less ideal for high-intensity running or cycling
- Higher price range ($141.66–$286)
- Less sport-specific features compared to the Unstoppable's performance design
- No semi-rimless advantage for unobstructed downward view