Rite in the Rain  Rite in the Rain's Trekker Pen is elegant in its simplicity, but brutal in its ability to write on almost anything as long as it is in the "Goldilocks Zone". Mercury, it will work well from -30 to 250 degrees Fahrenheit. At such extremes you will not be well, but the pen will be satisfied – even comfortable.
So it works on earth. Space too, most likely in the face of the pressurized cartridge. This little guy loves to write in the rain. Or maybe it's not happy at all, but
completely indifferent to the rain. Buy the pen and you can ask for it yourself.
Aesthetically, it recalls the simple usefulness of a slender hand grenade. The barrel is made of metal and provided with a rubber grip, so that it does not slip when wet. Of course, the refillable ink can also be used in any weather. It's almost as if this pen was designed by ducks with an engineering diploma.
A word for the wise: The key ring is attached to the cap and the cap is pressed on. So do not hang the pen on your keychain to yourself, otherwise you could lose it.
Best Bonus: Ti Click EDC Pen
Great Idea Design
Sometimes it's hard to say why a premium pen is premium. Big Idea Design is not one of those Poser Premium pens.
The Ti Click is a heretical creation supported by refilling with other pens. It's compatible with over 100 types of ink refill cartridges, but
If you could somehow get under the titanium skin of the Ti Click, you would experience overwhelming horrors. The inner jaws are similar to the drill holder for a drill, so they can be adjusted to grip tips of different sizes. Its body is also adjustable and can be telescoped to accommodate different refill tube lengths.
He also has a pretty little clip for the bag and is available in three finishes: Stonewashed, Midnight Black and Machined Raw.
Best budget: Zebra F-701
You may not have $ 105 for a pen, though he may be able to exploit the refills of other pens. Still, you want a good pen with a stainless steel case that really does write well. And if you lose it, you can buy another.
And if it has a product name that sounds like an advanced fighter, that's it. This is the Zebra F-701. Zebra pens are distinguished by a beautiful action with pens and leave good lines, so they are ideal for writing (or scribbling). The knurled grip gives you excellent control and the retractable piston is quiet, in case you need to click it anxiously while hiding from bats. This comes with black ink, but you can buy mines in other colors.
Best Compact: Fisher Space Pen Bullet
In space, no one can hear you scream, so you have to write things down.
When our brave astronauts must write their cries, they do so with a Fisher Space Pen. The patent (No. 3,285,228, if you want to look it up) was filed in 1966, but with a longer, non-spherical pattern. The great thing with this patent was not only the creation of a pressurized ink cartridge required for writing in weightlessness. The pressurization is easy. The real trick was to create the thixotropic ink, which is a quiescent gel but a pressurized liquid. Otherwise, you would have a pen that leaked uncontrolled due to the pressure.
Check out the Smithsonian Magazine if you want to learn more about the scientific history of this technology, which is half the fun of owning one of these pens. There are a number of modern form factors, but we have chosen the Fisher Space Bullet Pen for this EDC list, as it is compact when closed and therefore fits easily into your pocket (or pocket with the clip). This thixotropic ink also prevents accidents from happening – unless there's high pressure in your pocket.
When ready to write, glue the cap to the back end of the full-size pen.
Be careful when using this pen in space – its dull black color makes it difficult to see in the infinite void when you drop it.
Best Tactical: Gerber Impromptu Tactical Pen
When you hear the word "gerber", you normally think of two things: knife and baby food. This pin comes courtesy of the knife maker Gerber to us.
The Impromptu is a rugged, furious stylus with its built-in glass breaker ready to smash windows in case you ever drive your car into a lake or rescue a car dog from a hot parked car. Really, it's perfect for car windows. We recommend practicing legal restraint with glass breaking.
Write whatever you want, because it's also a pen. All-weather ink cartridges of the aforementioned brand Rite in the Rain are used. The case is made of steel and coated with Cerakote – a ceramic coating that makes it resistant to wear. They also put it on weapons.
The Impromptu is also marketed as a self-defense device because it is ruggedly built and contoured to hold it in the hand. We have not tested it yet, but it looks like it will probably work better than a handful of car keys.