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Color

Mineral King

Mineral King

$139.00
$139.00 $139.00
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Shipping calculated at checkout.

A classic style tricked out with performance rich features including a fully integrated cantilever hinge and adjustable temple tips. These glasses aren't going anywhere with their no-slip-grip. Go ahead and run, jump, and climb your way to that next FKT in confidence.

Our premium lightweight, flexible, and extremely durable frames are constructed of a recycled nylon blend that gives you the performance and durability you need at a lower cost to our environment.

FKT’s shatter-proof polycarbonate lenses are provided in grey and brown base colors that provide uncompromised clarity, color fidelity, and contrast while maintaining100% UVA/UVB protection. All lenses are treated with hydro-oleophobic, anti-scratch, and anti-reflective coatings to ensure you maintain a consistent field of view through ever-changing conditions.

Protect and clean your glasses with environmentally friendly accessories. All FKT sunglasses come accompanied by a protective case, recycled microfiber pouch, and recycled microfiber cleaning cloth. 

Color

ABOUT THE DESIGN

The Mineral Kings are for you if you want a more traditional fit in your performance sunglasses. These are aggressive trail glasses in a casual and stylish package. 

  • Adjustable no-slip-grip temples 
  • No-slip-grip nose piece
  • Premium lightweight recycled
  • Bioptix nylon blend frame
  • Trail vision technology lenses
  • Includes FKT case, pouch, and microfiber cloth

SIZE & FIT

Best For S-M Head/Face Size

LENS DETAILS

Trail Vision Technology provides image enhancing optics, improved depth perception, and heightened color definition. 

  • Shatter-resistant
  • 100% UVA and UVB protection 
  • Blue light filtration 
  • Designed for variable light conditions

SHIPPING & RETURNS


We offer free shipping on all product. 

If you are not completely satisfied, you may return your item(s) within 30 days of the purchase date for a full refund at no cost to you. In the event of a refund, credit for the full purchase price will be issued to the chosen payment method, generally within 5-7 business days from receiving your returned product. A refund issued to a credit card will appear on your account based on the bank’s policy.

View full details

ON THE TRAIL

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Namesake Trail

Mineral King

The Mineral King Loop is 36.3 miles with 12,140 ft of breathtaking (literally and figuratively) vertical gain taking you through subalpine valleys and high granite peaks. A quirky aspect to watch out for with this trail is the marmots known for wreaking havoc on campsites and even cars in the area. Read more about the pesky marmots here. 


Drew Antonisse currently holds the only known time at the moment at 9h23m5s.

Learn more about the FKT here.

Distance:

36.3 Miles

Elevation Gain:

12,140 feet

Performance

Trail Ready

The adjustable temples allow you to create the perfect fit. Combine the adjustable temples with the no-slip-grip nose piece and you can hit your hardest efforts without worrying about your glasses falling off your face. 

Materials

Trail Tough

Lightweight, flexible, and extremely durable. Our premium frames are constructed of a recycled nylon blend that gives you the performance and durability you need at a lower cost to our environment.

Optics

Trail Vision

FKT’s shatter-proof polycarbonate lenses aren’t polarized because polarization isn’t what a trail athlete needs. Polarization is wonderful if you’re on the water or snow, but it can cause depth perception issues if you’re running on a trail with variable light conditions. That’s why we opt for our Trail Vision tech which provides 100% UVA/UVB protection. All lenses are treated with hydro-oleophobic, anti-scratch, and anti-reflective coatings to ensure you maintain a consistent field of view through ever-changing conditions.

Extras

Trail Goodies

Protect and clean your glasses with environmentally friendly accessories. All FKT sunglasses come accompanied by a protective case, recycled microfiber pouch, and recycled microfiber cleaning cloth. 

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Focused on

SUSTAINABILITY

From recycled materials to sustainable production practices,
this is how we’re building a more sustainable future.

LEARN MORE

Customer Reviews

Based on 6 reviews
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E
E.
All the Colors

Happened upon FKT at The Rut, in Big Sky this fall. Great story, and quality in materials, lens clarity, frame colors and the brown/amber lens. So off into the wilderness I went. 10 hours later I emerged with a fondness for FKT.

Back here in New England, friends all loved them, and proceeded to order them. As with all things, styles change and you're left wishing you had backup. So I've got 2 green and 2 tortoise Mineral Kings both with the brown lens. Go big and keep the adventure coming... get em I say

L
L.G.
Love them ❤️ 😍

I ordered the tortoise and black before The RUT after first trying them on at a Missoula community event. They are perfect for times where I can't wear my polarized glasses or don't need them. I don't have any depth perception issues at all! The also survived a fall when they were hanging from the front of my shirt. That alone was impressive enough.

C
C.
Leadville 100

I bought these at the Leadville 100 expo 2024. I wore them