---
product_id: 571464220
title: "KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection"
brand: "kastking"
price: "€ 46.86"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.pt/products/571464220-kastking-flatrock-polarized-sport-sunglasses-for-men-and-women-ideal
store_origin: PT
region: Portugal
---

# Grilamid ultra-lightweight frames 1.0mm polarized TAC lenses 100% UVA/UVB protection KastKing FlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection

**Brand:** kastking
**Price:** € 46.86
**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?** € 46.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/571464220-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

- • **All-Weather Ready:** Lens color options optimized for any light condition, from bright sun to overcast skies.
- • **Military-Grade Comfort:** Super lightweight, flexible Grilamid frames built for all-day wear and durability.
- • **Secure & Stylish Storage:** Includes custom hard case and camo microfiber pouch to protect and clean your shades.
- • **Glare-Free Vision, Always:** Polarized lenses cut glare for crystal-clear sight on the move.
- • **Stay Spotless, Stay Sharp:** Oleophobic coating repels oils, saltwater, and dirt for lenses that stay cleaner longer.

## Overview

KastKing FlatRock Polarized Sport Sunglasses combine 1.0mm polarized TAC lenses with oleophobic coating and ultra-light Grilamid frames to deliver superior glare reduction, 100% UVA/UVB protection, and all-day comfort. Designed for active lifestyles including fishing, cycling, and running, these unisex sunglasses come with a custom hard case and microfiber pouch for secure storage and easy cleaning.

## Description

KastKingFlatRock Polarized Sport Sunglasses for Men and Women, Ideal for Driving Fishing Cycling Running, UV Protection

## Features

- KEY FEATURES – Oleophobic lens coating repels saltwater, oil, and chemicals - Polarized lenses reduce glare - Impact resistant TAC lenses protect your eyes from flying objects - Block 100% of the harmful UVA and UVB rays - Super Lightweight, durable, and flexible Grilamid frames
- OLEOPHOBIC LENS COATING – Our oleophobic lens coating creates an oil resistant, anti-fingerprint surface that is impervious to dirt, dust, oils, and other particles resulting in a surface that is easy-to-clean and maintains a cleaner lens longer than untreated lenses. 1.0mm polarized lenses are comparable to the thickness you would find on much higher priced sports eyewear. KastKing Polarized sunglasses help reduce glare caused by reflected light to improve vision and comfort.
- 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 |
|---------------|-------|
| Item Package Dimensions L x W x H | 6.57 x 3.23 x 2.72 inches |
| Package Weight | 0.1 Kilograms |
| Brand Name | KastKing |
| Color | Frame: Gloss Black/Lens: Smoke - Chartreuse Mirror |
| Material | Plastic |
| Suggested Users | Unisex Adult |
| Style | Sports Sunglasses |
| Size | Standard |
| Sport Type | Fishing, Outdoor Lifestyle |

## 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/51LmyGmA7WL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Outstanding Performance and Comfort
*by T***S on May 1, 2025*

I’ve worn a lot of sunglasses over the years, but these from KastKing are hands down my favorite. The lens coating is sweet. It repels everything. I spend a lot of time near water, and these lenses stay much cleaner than others I’ve tried. The polarized lenses reduce glare significantly regardless if I am fishing, driving, or playing sports. The lenses are very durable. These sunglasses are very lightweight and comfortable. Lots of color options and I am thankful for the 100% UVA and UVB protection. They also come with a hard case and a microfiber pouch which makes cleaning and storing easy. Overall, these feel like premium sunglasses without the premium price.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ No more buying expensive sunglasses
*by K***E on April 11, 2025*

These can't be beat for the price. I've had expensive mirrored polarized sunglasses from Redfin and multiple pairs from Costa and it seems like they don't last long for the $200 plus price tag. I picked these up cheaper than replacement lenses would've cost and I'm impressed. Even if I got to replace these every 6 months it's cheaper than purchasing boutique sunglasses that I only seem to get about a year and a half out of. The fit is similar to my Costa Slack Tide and Redfin Amelia's except these are super lightweight.

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-02-09*