---
product_id: 542072566
title: "KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection"
brand: "kastking"
price: "$66.65"
currency: USD
in_stock: true
reviews_count: 12
category: "Kast King"
url: https://www.desertcart.us/products/542072566-kastking-flatrock-polarized-sport-sunglasses-for-men-and-women-ideal
store_origin: US
region: United States of America
---

# Ultra-light Grilamid frames, military-grade durability Polarized TAC lenses cut glare by 99% 100% UVA/UVB blocking for max eye protection KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection

**Brand:** kastking
**Price:** $66.65
**Availability:** ✅ In Stock

## Summary

> 🕶️ Elevate your outdoor game with glare-free, military-grade style!

## Quick Answers

- **What is this?** KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection by kastking
- **How much does it cost?** $66.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/542072566-kastking-flatrock-polarized-sport-sunglasses-for-men-and-women-ideal)

## Best For

- kastking enthusiasts

## Why This Product

- Trusted kastking brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ultimate UV Shield:** Blocks 100% of harmful UVA and UVB rays, keeping your eyes safe under the harshest sun.
- • **Glare-Free Vision, Always:** Polarized TAC lenses reduce eye strain and enhance color clarity for all your outdoor adventures.
- • **Built to Endure, Designed to Impress:** Impact-resistant Grilamid frames offer military-grade strength with featherlight comfort—wear all day, every day.
- • **Ready for Action with Custom Storage:** Includes a hard molded case and camo microfiber pouch—protect and clean your shades like a pro.
- • **PuriVex PRO Coating for Crystal Clear Views:** Scratch-resistant, dirt-repellent lens coating ensures your vision stays pristine no matter the conditions.

## Overview

KastKing FlatRock Polarized Sport Sunglasses combine advanced polarized TAC lenses with ultra-light, impact-resistant Grilamid frames to deliver superior glare reduction and 100% UVA/UVB protection. Featuring exclusive PuriVex scratch-resistant coating and versatile lens colors, these sunglasses are engineered for active professionals who demand durability, comfort, and crystal-clear vision during driving, fishing, cycling, and running.

## Description

desertcart.com : KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection : Sports & Outdoors

Review: Great Value, Comfortable Fit, and Perfect for Water Activities - 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.
Review: Quality meets affordability. - 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.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BG4MDPDY |
| Age Range Description | Adult |
| Arm Length | 5.59 Inches |
| Best Sellers Rank | #1,195 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #11 in Sunglasses |
| Brand | KastKing |
| Bridge Width | 0.63 Inches |
| Color | Frame: Gloss Tal Dark Olive /Lens: Green - Gold Mirror |
| Customer Reviews | 4.5 out of 5 stars 1,421 Reviews |
| Fit Type | Regular |
| Frame Material Type | Grilamid® |
| Item Shape | Square |
| Item Type Name | Sunglasses |
| Lens Coating Description | UV Protection Coating |
| Lens Color | Green-Gold Mirror |
| Lens Material Type | Tri Acetate Cellulose |
| Lens Type | TAC |
| Lens Width | 2.28 Inches |
| Manufacturer | KastKing |
| Material | Plastic |
| Occasion Type | fishing, golf, hiking, running |
| Polarization Type | Polarized |
| Recommended Uses For Product | Climbing, Hiking, fishing, golf, running |
| Sport Type | Fishing, Outdoor Lifestyle |
| Style Name | Sports Sunglasses |
| Sunglasses Form | fit_over |
| Ultraviolet Light Protection | Yes |
| Unit Count | 1 Count |
| size | One Size |

## Images

![KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection - Image 1](https://m.media-amazon.com/images/I/515B6KchJlL.jpg)
![KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection - Image 2](https://m.media-amazon.com/images/I/71NogtFU5qL.jpg)
![KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection - Image 3](https://m.media-amazon.com/images/I/61PJiSLDLBL.jpg)
![KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection - Image 4](https://m.media-amazon.com/images/I/71p+V-np51L.jpg)
![KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection - Image 5](https://m.media-amazon.com/images/I/71+wyFzXtCL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Value, Comfortable Fit, and Perfect for Water Activities
*by W***. on March 16, 2025*

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.

### ⭐⭐⭐⭐⭐ Quality meets affordability.
*by H***7 on May 25, 2026*

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.

### ⭐⭐⭐⭐⭐ Wow, these are fantastic
*by B***3 on June 19, 2024*

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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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-11*