📸 Quick Look (Images)
🇺🇸 USA Buyer Note: Comparing hiking gear helps beginners avoid wasting money. Below is a simple, fast comparison so you can pick what fits your needs.
💰 Current Amazon Price
Price: $29.99 - $26.99
(as of Dec 17, 2025 06:55:31 UTC –
Details
)
⚖️ Quick Comparison
| Best For | Beginner hikers, day hikes, weekend trips (USA) |
| Value | Great value vs. similar Amazon options |
| Comfort | Designed for long walks and trail use |
| Durability | Suitable for common U.S. hiking conditions |
| Ideal Use | Parks, local trails, national parks, travel hikes |
🆚 How It Compares
- Vs. cheaper options: often better comfort + longer lifespan.
- Vs. premium options: similar core features, usually lower cost.
- For beginners: easier setup and fewer “extra” features you don’t need.
📝 Product Details
Product description
KastKing Flatrock Polarized Sunglasses
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
The FlatRock sunglasses feature a lightweight pliable Grilamid frame for extended comfort during long periods of use. The frames are built to survive years of active use, they’re ultra-lightweight, extremely flexible, resistant to heat & UV rays, and possess excellent memory and retain their shape.
1 Colorful series
2 Stylish series
Polarized Sports Sunglesses 
Polarization helps to reduce glare caused by reflected light which helps to improve vision and reduce eye strain and also allows anglers to see into the water and spot fish which essential for sight fishing. All KastKing eyewear lenses block 100% of the harmful UVA UVB rays.
Base Lens Color Guide 
KastKing lenses are protected with a tough oleophobic coatings to protect the lenses from dirt, dust, oil, chemicals, and harsh saltwater conditions.
Product Dimensions 
Enjoy all your outdoor activities in style and comfort with FlatRock polarized sports sunglasses designed for fashion and function. This comfortable lightweight frame is ideal for driving and sports activities such as biking, running, boating, fishing, and golfing.
Polarized Fishing Sunglasses
Add to Cart
Customer Reviews
4.4 out of 5 stars 3,241
4.4 out of 5 stars 9,656
4.4 out of 5 stars 1,240
4.4 out of 5 stars 795
4.5 out of 5 stars 108
Price
$23.69$23.69
$23.99$23.99
$26.99$26.99
$25.49$25.49
—
Style
FULL Wrap Design
FULL Wrap Design
Square Frame Design
FULL Wrap Design
One Piece Wide View
Flame Width
5.28 inches
5.23 inches
5.39 inches
5.3 inches
5.6 inches
Lens Width
2.44 inches
2.31 inches
2.28 inches
2.5 inches
5.7 inches
Polarized
✔
✔
✔
✔
✔
Bifocal
✘
✘
✘
✘
✘
Man/Women
Unisex
Unisex
Unisex
Unisex
Unisex
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
⭐ Summary (Why We Recommend It)
Customers say
Customers find these sunglasses excellent in quality and value for money, noting they look similar to other brands and are very light. They appreciate the fit, with one customer mentioning they work well under a motorcycle helmet, and find them comfortable, with one noting they perform well in sweaty or wet conditions. The polarized lenses receive positive feedback, with one customer highlighting their effectiveness for fishing. Durability receives mixed reviews, with some finding them durable while others report poor lens longevity.
- ✔ Beginner-friendly (no learning curve)
- ✔ Strong value for money (Amazon USA)
- ✔ Comfortable for day hikes & weekend trips
- ✔ Good choice for most U.S. trail conditions
👉 Check Today’s Price on Amazon
❓ Quick FAQ
Is this good for beginners?
Yes. It’s a practical pick for first-time hikers who want dependable gear without overspending.
Who should buy this?
- • New hikers building a starter kit
- • Budget-focused shoppers in the USA
- • Anyone wanting reliable gear for trails and parks
Affiliate Disclosure: hikingdeal.com participates in the Amazon Services LLC Associates Program. Prices and availability are subject to change.
