TwistLock Attachable Flat Mount Cup Holder and 20oz Insulated Canteen in Trailhead Green combo Pack.
Insulated canteen attached to the lid of a cooler with a flat mount locking cup holder.
A TwistLock attachable secure flat mount marine cup holder and insulated canteen on the deck of a sailboat.
Side by side with a secure locking cup holder on the dash and an insulated canteen being locked into it.
The TwistLock Insulated Canteen features a leak-proof flip and snap lid. It is stainless steel, vacuum insulated for hot or cold beverages.
Insulated 20oz canteen combo pack with flat mount attachable locking cup holder.
TwistLock Attachable Flat Mount Cup Holder and 20oz Insulated Canteen in Crater Lake Blue combo Pack.
TwistLock Attachable Flat Mount Cup Holder and 20oz Insulated Canteen in Summit White combo Pack.

20 oz Canteen + Flat Mount

$39.99
$39.99
  • Add a Locking Cup Holder
  • Secure Your Drink with a Twist
  • Vacuum-Insulated Canteen
  • 2-Year Unconditional Warranty
Drinkware Color: Obsidian Black
Free shipping on US orders over $45 badge. 2-year unconditional warranty badge. 60-day returns badge.

Adventure is unpredictable—your drink shouldn't be. Add a locking cup holder and secure your drink with a twist.

The Flat Mount’s tapered edge and recessed locking mechanism reduces trips and snags, making it a seamless addition to boats, paddleboards, and rafts. 

Paired with the double-wall vacuum-insulated canteen, your drink stays hot or cold for hours, so you can stay focused on the adventure ahead.

Only Obsidian Black drinkware features the engraved 'TwistLock Beverage Locking System' logo, as shown. The other colors do not.

What's Included?
  • Stainless Steel Double-wall Vacuum Insulated TwistLock 20oz Canteen
  • Flat Mount Locking Base
  • Installation Kit (x4 zinc-plated screws, x4 double-sided 3M VHB adhesive squares)
Measurements & Specs

Canteen
  • Dimensions: 10.125"x2.9"x2.9"
  • Capacity: 20oz
  • Materials (Body): Stainless Steel
  • Materials (Base & Lid): Polycarbonate
  • Compatibility: Securely locks into all TwistLock Mounts & fits inside standard-sized cup holders.
Flat Mount
  • Dimensions: 0.7"x4.5"x4.5"
  • Materials: Polycarbonate
  • Compatibility: All TwistLock Drinkware
  • Mounts to: Flat surfaces
  • Included mounting kit: Self-tapping zinc-plated steel screws (x4) & double-sided 3M VHB adhesive (x4)

How Do I Use It?

Easily add a locking cup holder nearly anywhere. Perfect for Paddleboards, rafts, boats, side-by-sides, heavy equipment, tractors, and more!

1. Flat Mount: Attach to any flat surface using the included self-tapping screws or adhesive.

2. Lock Your Drink: Twist your wrist to securely lock your drinkware into the Locking Base.

Insulated 20oz canteen combo pack with flat mount attachable locking cup holder.

20 oz Canteen + Flat Mount

$39.99
$39.99
A dude falling off a paddle board. His can cooler is safety secured using the TwistLock adhesive flat mount cup holder. Mobile Hero.

Waves? Bumps? No Problem.

Add a locking cup holder and lock in any TwistLock Drinkware with a twist.

Workstation secure spill free beverage cup holder on desk with TwistLock blue Tumbler locked into a Flat Mount.

Convenient, Durable, & Spill-Free.

The slightly recessed locking mechanism and rounded corners make this mount ideal for locations prone to tripping or catching things.

The Flat Mount is a favorite for paddleboarders and boaters, but can be added to nearly any other flat surface.

A cooler lid open near the river showing the drinkware being locked in.

Easy to Install.

Attach the Flat Mount wherever you need using screws or 3M VHB adhesive (both included). Either option will give you a rock-solid hold.

Bell 505 Helicopter with a TwistLock Flat Mount Cup Holder attached and Insulated White Canteen locked securely in.

Roots in Aviation.

The Flat Mount Locking Base was originally created to provide a secure drink holder on the floors of Helicopters. The slightly recessed locking mechanism and rounded corners make this mount ideal for locations prone to tripping or catching things.

This Locking Base has become a favorite for paddleboarders, boaters, and outdoor enthusiasts.

Common Questions

Can I Use My Own Cup?

The Vertical Mount and Recessed Cup Holder both will comfortably hold any standard-sized cups, cans, or bottles, however, only TwistLock Drinkware will lock into them.

The Flat Mount, Mini Disc, & Bar Mount only work with TwistLock Drinkware.

Is the Drinkware Insulated?

Yup! All TwistLock drinkware is stainless steel, double-wall vacuum-insulated. It will keep your drinks hot or cold for hours.

What If My Boat Has Carpet?

If your boat has carpet, you can still install the mounts using the included screws.

How to Install the Flat Mount

The Flat Mount includes x4 double-sided 3M VHB adhesive squares and x4 self-tapping screws. Either method provides a secure hold.

Where Can I Use It?

Pretty much any flat surface. Some favorite uses include:

  • Paddle Boards
  • Fishing Boats
  • Cooler Lids
  • Raft Gear Boxes
  • Riding Lawn Mowers (Fenders)

What's the Difference Between the Flat Mount and Mini Disc?

While both Locking Bases can be added to nearly any flat surface, the primary difference between the two is their size.

The Flat Mount is a bit larger (diameter: 4.50") and features a tapered edge and a slightly recessed locking mechanism that helps minimize trips and snags.

The Mini Disc is smaller (diameter: 2.655"). The compact size allows you to add it inside existing cup holders, tight spaces, and nearly any other flat surface.

2-Year Unconditional Warranty

We offer a 2-year unconditional warranty on all of our products. When we say unconditional, we mean it. If anything happens, we will happily send you a replacement. 

For more information on our warranty, visit our warranty page.

Shipping Info

Orders over $45 get FREE shipping. Orders under $45 have a $5.99 flat rate shipping cost.

We ship all of our products from Bend, Oregon, via FedEx or UPS. Please allow 2-3 business days for us to process and ship your order.

  • 5 stars: 15 (79%)
  • 4 stars: 2 (11%)
  • 3 stars: 1 (5%)
  • 2 stars: 1 (5%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
M
Michael B.
Great service, poor design

I own four Twistlock canteens. All four have failed to perform. The twist-on base cracks and falls off the cup, making it impossible to use with the locking mechanism. The warranty service is excellent but the product leaves a lot to be desired. I cannot recommend this product to anyone I know.

Michael B. review photo Michael B. review photo Michael B. review photo
B
Brent W.
Your tumbler is great for cold/hot beverages

Your tumbler is great for cold/hot beverages. No leaks and the cup/base attachment is foolproof!!
I have attached it to the floor in my Super Cub aircraft. It’s out of the way of my feet and still easy to grab, and about the only place to mount it in my airplane.

B
Brian W.
I love this whole system

I love this whole system. The cup holders are solid as a rock. 30mph over choppy waters in a jonboat!! The canteen held ice the whole time "about 6hrs." in 88* and sunny. No idea how long it would've stayed cold. All day? Probably.

T
Thomas m.
I bought two cups

I bought two cups, and flat mounts for my boat. They have preformed as advertised. I am very happy with them and will purchase more items in the future. Great gift idea also

J
John

Great product. Super easy installation. Took 2 minutes. The self tapping metal screws were a huge help!

T
Tom Y.
It works great

It works great.

J
Jesse A.
Good

Good

S
Steven C.
Great idea but did not recive what i ordered

Well I like the product but it is not what i ordered and when i reached out a week ago to get some help crickets so wont be buying anymore from them. Its a shame like i said good product i was going to put them in both planes and boats oh well

M
Martin M.
It's theBest

It's the best

M
Martin M.
Got extra ones so it works on all my equipment

Got extra ones so it works on all my equipment.

J
James

Great products!

K
Kevin

Love it

M
Mark S.
Really sweet solution to taking beverages on the trail

High quality construction and really solves the beverage in motion issue.

R
Robert D.
Should be great!

Haven’t used yet but looks like they should work great in the dozer and excavator.

K
Kevin C.
Awesome product

Mounted on my quad, awesome product

P
Pete H.

This is the best system I've found for my boat. It was easy to install and works great. The can cooler is very insulating and the locking base works as advertised.

K
Kate

I was given a system to try out and it works great for our use. We have it mounted on our tractor and it’s perfect for long days working. Super handy!

C
Christina

I LOVE this on my stand up paddleboard!

D
Daniel L.

Tried this base on my inflatable paddle board, but with the bigger surface area it didn’t work the best, it did work and keep the drink from spilling! I will be getting another one of the mini disks though for the SUP. This mount would be great if you had area you wanted a clean look to.

B
Bill

What are the internal dimensions of your insulated container?

TwistLock Beverage Locking System

The canteen's internal dimensions are around 7.5" tall and 2.5 " in diameter. The internal width varies a bit but comes out to a 20-oz capacity. The external dimensions are 10.125" tall, 2.67" in diameter at the base, and 2.9" in diameter at the lid. I hope that helps! Let me know if you have any other questions.
Cheers,
Sam