Fisher Space Pen Cap-O-Matic Pressurized Ink Pen

The Fisher Cap-O-Matic is 5.13 inches overall in blue with a pocket clip and a pressurized PR4 black medium point cartridge.

Cap-O-Matic is the click-retractable Fisher body, where the Bullet and Original use a cap. That makes it the version for one-handed use, which matters with gloves on or a clipboard in the other hand. There is also no cap to lose, which is how most pens end up unusable rather than running out of ink.

The cartridge is pressurized with nitrogen rather than relying on gravity, so it writes upside down, at any angle, under water, over grease and in extreme temperatures. Blue is the plainest colorway in the range, and at 5.13 inches with a pocket clip it looks and works like an ordinary pen until conditions turn. Explore more camp accessories.

• Click-retractable, usable one-handed
• No cap to lose
• Pressurized cartridge writes at any angle
• 5.13 inches with a pocket clip