A replacement Refill cartridge that will fit any Rite in the Rain All Weather pens. Writes in any weather, virtually any temperature and upside down.
Rite in the Rain says:
While a pencil works great on our All-Weather products, sometimes you just need a pen. Don't worry about running out of ink, refills fit all All-Weather pens.
Even the best of pens require a refill now and again. So don't get caught out, make sure to take a spare. This ink can write over water, grease and onto photographs - a wide variety of contaminated surfaces that would challenge other pens!
- Reviewed by Ultralight Outdoor Gear