KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection
Condition: New
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Availability:
In Stock.
Arrives
Tuesday, Aug 4
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Color: Frame: Gloss Smoke Crystal /Lens: Smoke
Features
- KEY FEATURES Polarized lenses reduce glare - Impact resistant TAC lenses protect your eyes from flying objects - Blocks 100% of the harmful UVA and UVB rays - Lightweight, durable, and flexible Grilamid frames
- PuriVex PROTECTIVE COATING Exclusive KastKing PuriVex coating protects lenses from scratches while repelling dirt, oil, and water for easier cleaning and long-lasting clarity. The tough marine-grade coating helps prevent scratches and resists damage in harsh outdoor conditions, making these sunglasses ideal for fishing, driving, and other active sports
- SUPERIOR AND SUPER LIGHTWEIGHT FRAMES Made from the same Grilamid material commonly used by the military and in medical applications, our frames are greatly lightweight, extremely flexible, and heat and UV resistant. Grilamid frames are well known for their strength, lightweight comfort, shape integrity, and impact resistance. This ultra-lightweight and malleable material translates to a very comfortable fit
- BASE LENS COLOR and UV PROTECTION Smoke lenses are ideal for bright sunlight with the most realistic color reproduction and work well in medium light and partial shade. Brown lenses increase contrast and depth perception, ideal for cloudy to sunny conditions. Copper lenses were best suited for moderate to low light. Green performs well in sunny to overcast conditions. KastKing sunglasses block 100% of the harmful UVA and UVB rays and meet or exceed all U.S. ANSI standards
- PROTECT YOUR EYEWEAR KastKing sunglasses include a molded custom hard case for storage and a custom Prym1 Camo microfiber pouch which can be used for cleaning as well as storing your sunglasses. To avoid lens scratches and lens coating damage, clean your lenses with a clean microfiber cloth or lint free cloths and fresh warm water. Never dip them in saltwater or dry with a paper towel
Color: Frame Gloss Smoke Crystal /Lens Smoke
Item Shape: Square
Lens Color: Smoke
Style Name: Sports Sunglasses
Sunglasses Form: fit_over
Frame Coverage: Full Frame
Occasion Type: fishing, golf, hiking, running
Brand: KastKing
Age Range Description: Adult
Unit Count: 1 Count
Manufacturer: KastKing
Manufacturer Part Number: B1470
Item Type Name: Sunglasses
Lens Type: TAC
Lens Coating Description: UV Protection Coating
Sport Type: Fishing, Outdoor Lifestyle
Ultraviolet Light Protection: Yes
Polarization Type: Polarized
Recommended Uses For Product: Climbing, Hiking, fishing, golf, running
Fit Type: Regular
Frame Material Type: Grilamid®
Lens Material Type: Tri Acetate Cellulose
Material: Plastic
Product Care Instructions: Clean lenses with a clean microfiber cloth or lint-free cloths and fresh warm water. Never dip them in saltwater or dry with a paper towel. Store in the provided hard case or microfiber pouch.
Arm Length: 5.59 Inches
Bridge Width: 0.63 Inches
Lens Width: 2.28 Inches
size: One Size
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Aug 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Frame: Gloss Tal Light Blue /Lens: Smoke...
I purchased the KastKing FlatRock Polarized Sport Sunglasses for an upcoming cruise to the Bahamas and a fishing trip. I specifically needed blue mirror lenses for better visibility on the water, a comfortable and secure fit, and a good price—these sunglasses deliver on all fronts. The polarization is solid, cutting glare effectively while enhancing colors, making them ideal for fishing, boating, and general outdoor use. The lightweight frame is comfortable enough for all-day wear, and they stay put even during movement—no annoying slipping down the nose. I also considered Knockaround sunglasses, which I've used before, but I’m glad I went with the FlatRock style. The design works well with my long face and angular features, providing both a stylish and functional fit. For the price, these are an excellent alternative to more expensive polarized sunglasses, and they don’t feel cheap. If you need reliable eye protection for driving, fishing, cycling, or any outdoor adventure, these are a solid pick.
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Reviewed in the United States on March 16, 2025 by Will S.
Color: Frame: Gloss Black /Lens: Smoke
At the price point, these are great. Polarizing lenses work well and colors worked for me. They will last about a season between work and play. They are comfortable and don’t rub the top of my ear raw like other low-priced glasses do. They are not indestructible, though. They will scratch easily on a drop or through poor care. Take care of them and they last at least season.
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Reviewed in the United States on May 25, 2026 by Hawk07967
Color: Frame: Gloss Tal Light Blue /Lens: Smoke...
I may have to try a KastKing spinning reel after wearing these (Normally a Penn guy) because the quality of these sunglasses is that excellent. Let's start with what's obvious; the looks. First, there's no mistaking these for cheap, off-the-rack shades. KastKing is clearly employing a higher-end manufacturing process to produce these, and at least for me this size is perfect. I want full coverage for my eyes (beach - surf fishing), and to me a lot of frames on the market appear to have been designed with a smaller head in mind. These are not like that. They're large enough to cover my eyes without being too big. They're also not "cat-like" which for my taste makes then more wearable. Next thing has to be the weight. Really wow. They're amazingly light. I can barely tell that I'm wearing them, and I love that they are pliable, a definite plus. Polarization, check ✔️. Mirror lens, check ✔️. Eye-soothing tint, ✔️. Comes with a great case, ✔️ Affordable price, ✔️. Seriously, I may just have to try out that spinning reel, but whatever the case I'm definitely a fan of the sunglasses. So much so, in fact, that I think I'll get a pair for my wife, too. KastKing, please take a bow. 👍
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Reviewed in the United States on June 19, 2024 Reviewed in the United States on June 19, 2024 by Bench Test 33
Color: Frame: Gray Crystal /Lens: Brown
Nice sunglasses, The brown worked well in the alaska brightness. Case is a good plus as it protects while traveling.
Reviewed in the United States on May 22, 2026 by Go Vols
Color: Frame: Matte Black /Lens: Smoke - Cobalt...
Nice glasses, good protection, I just don't like how long the earpieces are and I don't like that they go far past my ears other than that no complaints. I was going to return them and just send them back but I've bought another pair of the Tocca line from them, and I just figured why not keep these as a backup pair or just have options to put on, because they are not horrible they're ear pieces being long is just a pet peeve, and quickly was reversed with putting a pilotfish sunglasses wire on them. For the price KastKing on a lot of their stuff is a steal and quality, a local fishing store by me stocks their stuff. After all and all. These are the most comfortable frames by KastKing for me, I can just be picky mostly bc hats are getting in the way of the frames.... But the flatrocks haven't given me any issue at all, especially since I've added a Berkeley glasses strap.. comfortable as all heck. No matter my opinion on the style, KastKing's glasses are great for fishing and UV protection you just have to find the style that is good for you!
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Reviewed in the United States on April 20, 2026 by Frankep
Color: Frame: Gloss Tal Light Blue /Lens: Smoke...
Just like all my other Kast King products, well made and good looking. Clarity is superb!
Reviewed in the United States on June 6, 2026 by bubba61
Color: Frame: Gloss Demi /Lens: Brown - Chartre...
My favorite sunglasses. It’s hard for me to find glasses that fit and don’t rest on my cheeks but these are great. And comfortable to be in all day. My only complaint is the coating on the lenses is not very robust. After about a year of wear the coat is starting to flake off the lenses but at the price point I guess I should expect corners to be cut.
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Reviewed in the United States on April 23, 2025 by chris albright
Color: Frame: Gloss Tal Gray /Lens: Smoke - Blu...
I really like these sunglasses. They hit well above their cost. They are comfortable, lightweight, and the polarization on them is really good. Perfect for fishing or driving in the Florida/Texas sun.
Reviewed in the United States on June 3, 2026 by Bill