KastKing FlatRock Polarized Sport Sunglasses for Men & Women, UV Protection
About this product
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
Editor's Take
Amazon and retailer review snippets for the KastKing FlatRock Polarized Sport Sunglasses are strongly positive overall. Amazon-style product reviews on KastKing’s own product page say the sunglasses are clear, lightweight, comfortable, and good at blocking glare, with multiple reviewers calling them a strong value for the price.
Walmart reviewers also praise the clarity and comfort, with comments like “really nice sunglasses” and “super clear,” and mention they work well for fishing and everyday wear. A broader retail review page shows the same pattern: buyers like the low weight, glare reduction, and included case, while a few note fit can vary by face shape.
On TikTok shop review snippets, many users say they get compliments and are happy with the fit and fast shipping, but a negative thread of feedback says the frames can feel cheap, the hinges may seem flimsy, and the price feels high for the materials. That suggests the product is generally liked for optical performance and comfort, but durability and build quality are the most common concerns.
On YouTube, the search surfaced multiple real videos specifically about this product, including review, unboxing, and try-on style videos titled around the KastKing FlatRock sunglasses. The video snippets emphasize comfort, solid packaging, decent darkness/clarity balance, and suitability for fishing and lake use.
- Overall sentiment: positive
- Most praised: clarity, polarization, light weight, comfort, glare reduction
- Main criticisms: frame/hinge durability, occasional fit issues, “cheap plastic” feel from some buyers
Price History
Specifications
| Style | Wrap Around |
| Polarized | Yes |
| UV Protection | Yes |
Product Details
| Color | Frame: Gloss Tal Gray /Lens: Smoke - Blue Ocean Mirror |
| Item Shape | Square |
| Lens Color | Smoke-Blue Ocean Mirror |
| Style Name | Sports Sunglasses |
| Sunglasses Form | fit_over |
| Occasion Type | fishing, golf, hiking, running |
| Brand | KastKing |
| Age Range Description | Adult |
| Unit Count | 1 Count |
| Manufacturer | KastKing |
| Item Type Name | Sunglasses |
| Import Designation | Imported |
| Best Sellers Rank | #2,154 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #12 in Sunglasses |
| ASIN | B0BG4WKXBJ |
| Customer Reviews | 4.4 out of 5 stars |
| 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, Driving, Fishing, Golf, Hiking, 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. Avoid saltwater and paper towels for drying. |
| Arm Length | 5.59 inches |
| Bridge Width | 0.63 inches |
| Lens Width | 2.28 inches |
| size | One Size |
