The Inka Pen from Nite Ize might just be the perfect writing instrument for outdoorsmen and women. It writes in all temperatures, all altitudes, upside-down, even underwater. It's 3 1/2-inches long in its quick-use mode and can be converted to a full-size pen in seconds. The built-in PDA stylus is a nice touch, and the key ring is the ideal way to attach it to your pack or belt loop. Replaceable ink cartridges make it a better choice over disposable pens.
Contact: Nite Ize, Inc., 1-800-678-6483, www.niteize.com.