Reviews You Can Rely On

Speedfil Speedflask Review

This premium bike bottle is easy to use and will endure many miles on the trails
gearlab tested logo
Speedfil Speedflask Review (The Speedflask was quick to fill wherever we stopped to recharge.)
The Speedflask was quick to fill wherever we stopped to recharge.
Credit: Jon Oleson
Price:  $40 List
  • 1
  • 2
  • 3
  • 4
  • 5
Manufacturer:   Speedfil
By Jon Oleson ⋅ Review Editor  ⋅  Sep 22, 2023
82
OVERALL
SCORE


RANKED
#4 of 15
  • Closure - 25% 7.0
  • Insulation - 25% 8.0
  • Taste - 25% 9.0
  • Ergonomics - 15% 9.0
  • Material Quality - 10% 8.0

Our Verdict

The Speedfil Speedflask lives up to its name. The push button flip cap pops up to reveal a wide mouth spout that lets liquid in or out quickly, yet the mouth is a size that allows for a good seal when gripping with one hand and gulping with the other on the fly. Unlike most other bike bottles, the Speedfil is stainless steel, double-walled, and vacuum sealed. Even while cruising the trails of Tucson mid-day in the summertime, your liquids will stay cool while you ride. Get the scoop on how it stands up to the competition in our review of the best water bottles.
REASONS TO BUY
Durable
Well-insulated
Quality materials
Quick-flip cap
REASONS TO AVOID
Heavier than plastic
Expensive

Compare to Similar Products

 
speedfil speedflask
Awards Top Pick Award Editors' Choice Award Best Buy Award Top Pick Award Top Pick Award 
Price $40 List
$39.95 at Amazon
Check Price at Backcountry
Compare at 3 sellers
$26 List
$21.46 at Amazon
$35 List
$19.52 at Amazon
$33 List
$31.49 at Amazon
Overall Score Sort Icon
82
85
82
76
73
Star Rating
  • 1
  • 2
  • 3
  • 4
  • 5
  • 1
  • 2
  • 3
  • 4
  • 5
  • 1
  • 2
  • 3
  • 4
  • 5
  • 1
  • 2
  • 3
  • 4
  • 5
  • 1
  • 2
  • 3
  • 4
  • 5
Bottom Line With the flip of a finger you'll stay hydrated as you ride down the trails and roadsIf you like sipping cold water from a straw all day long then you'll love this well-insulated bottle that even fits in your cup holderA luxurious looking insulated bottle that's light on the walletThis premium glass bottle is pleasurable to drink from and easy to carryThis affordable filter bottle will remove the chlorine taste from your tap water
Rating Categories Speedfil Speedflask Hydro Flask Wide Mo... Iron Flask Insulated Purifyou Premium Glass Brita Stainless Ste...
Closure (25%)
7.0
9.0
9.0
7.0
9.0
Insulation (25%)
8.0
8.0
7.0
6.0
9.0
Taste (25%)
9.0
8.0
8.0
9.0
3.0
Ergonomics (15%)
9.0
9.0
9.0
9.0
8.0
Material Quality (10%)
8.0
9.0
8.0
7.0
8.0
Specs Speedfil Speedflask Hydro Flask Wide Mo... Iron Flask Insulated Purifyou Premium Glass Brita Stainless Ste...
Body Material 18/8 Stainless steel Stainless steel 18/8 Stainless steel Borosilicate glass 18/8 Stainless steel
Measured Empty Weight 11.4 oz 12.8 oz 10.9 oz 15.7 oz 14.2 oz
Volume 21 oz 24 oz 22 oz 22 oz 20 oz
Bottle Weight / Fluid Capacity 0.5 oz/oz 0.5 oz/oz 0.5 oz/oz 0.7 oz/oz 0.7 oz/oz
Mouth Diameter 2.1 in 1.9 in 2 in 1.125 in 1.75 in
Base Diameter 2.95 in 2.9 in 2.9 in 3.25 in 3.23 in
Height 9.84 in 12.6in 9.4 in 8.5 in 10.83 in
Body Type Hard-sided/traditional Hard-sided/traditional Hard-sided/traditional Hard-sided/traditional Hard-sided/traditional
Environmental Health BPA free BPA and Toxin free BPA-free n/a BPA-free
Cap/Lid Type Wide mouth flip cap screw top Screw-cap, wide mouth with straw Screw cap, flip top, carabiner straw Screw-cap with loop Screw-cap with straw
Volume Options 21 oz 18 oz, 20 oz, 21 oz, 24 oz, 32 oz, 40 oz, 64 oz 14 oz, 18 oz, 22 oz, 32 oz, 40 oz, 64 oz 12 oz, 22 oz, 32 oz, 40 oz 20 oz, 32 oz

Our Analysis and Test Results

Most people are familiar with the cheap plastic bike squeeze bottle. Those who are serious cyclists may know Speedfil as the name in innovative designs for cycling hydration. With the Speedflask, they aimed to make the average biking bottle more durable, insulated, and easier to chug. While it will set you back monetarily more than the average plastic bottle, it's sure to keep your liquids cool through many, many miles on the trail. As a bonus, the flip cap will keep mud, dirt, and sand off of your spout, which will also keep it out of your mouth.

Performance Comparison


speedfil speedflask - the speedfil speedflask is a good companion on bicycle adventures.
The Speedfil Speedflask is a good companion on bicycle adventures.
Credit: Jon Oleson

Closure


The Speedfil Speedflask has a hard plastic screw-on lid with a push button cap covering a circular spout. The pop-up cap is easy to operate one-handed, which is good when you're trying to take a drink while in motion on two wheels. The cap is sealed by a rubber plug gasket, which creates a satisfactory seal to keep your liquids in while you roll down the trails.


While the seal performed well in field testing, on the controlled test, there was some noticeable leakage. Left sealed on its side with blue-dyed liquid inside, it left a small puddle after 24 hours. This wasn't enough to cause a lot of concern, but we'd hesitate to throw it in the bottom of a pack that we wanted to stay dry. This bottle is best carried in a bike cage or cup holder or by hand using the convenient clip-down carry handle.

speedfil speedflask - the speedfil speedflask left a modest stain on the paper during the...
The Speedfil Speedflask left a modest stain on the paper during the “leakproof” test.
Credit: Jon Oleson

Insulation


Right out of the gate, this bottle has the upper hand on insulation over most bike bottles. The vacuum-sealed double walls do a great job at keeping your liquids insulated from outside temps. This makes it an outlier in the bike bottle category. Among the other insulated bottles, however, it ran middle of the pack.


On the controlled insulation test, where we filled the bottles with cold water and tracked the temperature of the contents over 6 hours in the sun, the Speedflask went from 65 degrees F to a warm but manageable 80. It was neither the most nor the least insulated bottle in that category. In field testing, we were impressed by how cool this bottle kept our water while rolling through the hills and valleys. If you fill it with ice and then water, you can further ensure that you'll be sipping cold water on the trail and the spout is of a size that limits ice cubes from pouring into your mouth.

speedfil speedflask - the speedfil speedflask has thick, insulated walls.
The Speedfil Speedflask has thick, insulated walls.
Credit: Jon Oleson

Taste


Many have memories of sipping warm water from plastic bike bottles growing up. That familiar plastic taste went hand in hand with the classic squeeze bottle. In this way, the Speedfil is superior to those bike bottles of yore. Made from premium 18/8 stainless steel, it won't leach chemical taste into your source of hydration. We found this to be a welcomed change on the trail for those used to using plastic bottles or bladders.


Throughout testing, our cold water tasted clean and fresh from the Speedflask's spout. Even on the hot water test, where we filled the bottles with 100 degree F water and let them sit to simulate a water bottle left in a hot car, this bottle's contents tasted clean. If you like to fill your bottle with sports drinks or vitamin powders, you'll be happy to know that this bottle is flavor resistant. Although a faint smell may remain, subsequent water fill-ups taste like pure water.

speedfil speedflask - the insulated speedfil speedflask kept our liquids cool while on two...
The insulated Speedfil Speedflask kept our liquids cool while on two wheeled adventures.
Credit: Jon Oleson

Ergonomics


First off, we'd like to note how easy the Speedflask is to use one-handed. The slender design, inset waist, handle clip, and push button flip cap all work together to make it easy to grab, grip, flip, and chug. Some bike bottles can be sticky when trying to grab them from your bottle cage while in motion. We found that it was mindlessly simple to reach down and grab the clip handle to remove this bottle from the cage and hydrate. It slid in and out with ease.


Off the bike, this bottle was comfortable to carry and tote around. The convenient carry handle clips down to sleekly stow when not in use. It will fit in your cup holder as well as it fits in your bike cage. This makes it a versatile bottle to use if you're biking to work or going on a hike. The finished stainless steel design makes it just as suitable for the office as on backcountry trails. It was so easy and convenient to use that we'd recommend this bottle whether on or off the bike.

speedfil speedflask - the speedfil speedflask has a plastic carry loop that clips down out...
The Speedfil Speedflask has a plastic carry loop that clips down out of the way when not in use.
Credit: Jon Oleson


Material Quality


As we mentioned, the Speedfil Speedflask is made of 18/8 pro-grade stainless steel. The durable design will surely last hundreds of trail miles, if not a lifetime. The push button is well-designed and built and showed no signs of wear during testing. There's a silicone gasket under the lid that ensures a tight seal and a silicone post gasket under the cap that keeps liquids in while rolling down the trail.


We did notice a couple of weak points in the design. For one, the flip cap is not spring-loaded. It functions with a rubber band that will likely wear and break over time. But rest assured that if it does break, it's a cheap and easy fix. The second potential weak point is the clip-down carry handle. It's affixed to the pop-up lid hinge with a metal pin. It's easy to twist and bend, and we can imagine this piece getting broken if you take a spill or drop it in just the right way. One other thing to note is that the manufacturer recommends hand washing. We see no reason why the vessel can't be thrown in the dishwasher, but that may reduce the life of the rubber band on the flip cap. Overall though, this bottle is a bomber and a durable investment.

speedfil speedflask - the speedfil speedflask's pop top is loaded by a rubber band. we...
The Speedfil Speedflask's pop top is loaded by a rubber band. We determined this to be a weak point over time, albeit an easy fix if it does break.
Credit: Jon Oleson

Should You Buy the Speedfil Speedflask?


If you're an avid cyclist and spend a lot of time on your bike sipping from a cage bottle, then you'll want to seriously consider upgrading to stainless steel if you haven't already. Your water will taste cleaner and stay cooler no matter where your two wheels take you. Even if you don't spend a lot of time on a bike, you may want to consider this attractive polished steel bottle as a quick-fill, lightweight, insulated bottle that's easy to use on the go. We don't recommend this bottle if you're planning to store it in a pack, on hikes, or during the commute. While the flip cap produces an adequate seal, it did leak a bit on our controlled test.

speedfil speedflask - the speedfil speedflask's push button flip cap makes it easy to use...
The Speedfil Speedflask's push button flip cap makes it easy to use with one hand while gripping the handlebars with the other.
Credit: Jon Oleson

What Other Water Bottle Should You Consider?


If you want a bottle that we can assure won't leak in your pack while you trek around town, check out the Hydro Flask Wide Mouth with Straw. If you want a more affordable option of the straw-cap bottle, then check out the Iron Flask Insulated. If you need a lightweight bottle to throw in your pack that will allow you to filter non-potable (i.e., wild) sources of water on backcountry trails, check out the Lifestraw Go.

Jon Oleson