Keep writing, no matter what the weather throws at you, with the Rite in the Rain All-Weather Durable Pen. This resilient writing tool features a pressurized ink cartridge that works perfectly in temperatures from -30F to 250F, underwater, and at any angle. The tactical pen's proprietary ink delivery system ensures smooth writing even in extremely wet conditions - through water, sweat, grease, and mud. Perfect for military personnel and anyone who needs to take notes in all conditions.