KastKing FlatRock Polarized Sport Sunglasses for Men & Women, UV Protection

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.

Love these glasses! They are durable, lightweight comfortable. I am an irresponsible owner and have lost two previous pairs. I had one pair for approximately one year and they were super durable. I keep coming back because they are so affordable for a good pair polarized glasses.

The feel of these sunglasses is comfortable and not tight or too loose. They Definitely do not feel cheap! blue lenses look great and the vision through wearing them is like seeing in HD. HIGHLY RECOMMEND!

These were very nice! After two years they lost the AR coating. It delaminated. These were my everyday for yard work and worked great up until almost the 2 years of wearing.

They feel great, look amazing, fit perfectly, no glare, clear as day, kastking didn’t just kill it with rod and reels they killed it with the glasses too

I purchased this sunglasses on June 29th because they were on sale, in preparation for my upcoming beach trip last week 8/1 to 8/8 of 2026. While they are very comfortable and look great, I am disappointed at the fact that the lenses had began to peel? There are black spots on both lenses now after one week at the beach. It says in the description that they are PuriVex Water & Salt Repellent. This are not durable at all, and I am very disappointed because, as stated the glasses fit great and are very comfortable for everyday use. Either for walking, driving, or just hanging by the pool. I would rinse the glasses with fresh water after each use however, that seems to have done nothing to prevent the lenses from being damage. I think, for everyday use these are great. If used at the beach for a week, know that they will not last past the fifth day.

Excellent and attractive sunglasses! The light translucent blue frames paired with the blue lenses is a very attractive option. They fit nicely, and are a great size. I'm a standard male model: 5'11", 185lbs, athletic. Face shape is normal, eyes slightly closer together than typical. I received compliments on my first day wearing them, and folks were impressed and intrigued with the price point.

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!

Love these - comfortable fit, comes with a sturdy case, they have excellent clarity and for the price they feel like a steal! Highly recommend!

Really nice for the price...

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Comfortable and light fit really well.

Great polarized glasses