All-Weather Writing - permanent ink writes through water, grease, and mud without clumping or smearing
Pressurized Cartridge - writes in temperatures from -30F to 250F, under water (up to 35 ft), and any angle
Proprietary Ink - used exclusively in Rite in the Rain Refills will write without skipping in extremely wet conditions far better than other comparable all-weather pens
Ink Delivery -tip will deliver ink in the worst conditions without allowing water or air back into the Cartridge
Refills Available - black ink refill (99BR) packs available
