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Inka Extreme Conditions Pen First Look (Outdoor Retailer Winter Market 2005)


by Carol Crooker | 2005-01-29 03:00:00-07

If the Inka pen has not won a design award, it will. It is a marvel of precision-engineering and attention to detail, and it weighs 0.6 ounces! Its approximately 3-inch long body includes a split ring so that the pen can be attached anywhere. The cartridge is pressurized so that it can write at any altitude, angle, temperature, and underwater – and it writes smoothly. The case is hardened 304 stainless steel, and the pen grip is cast from high-strength lightweight composite. The pen grip snaps snuggly into place inside the steel case as its O-ring engages the internal groove. The pen is secure but can be quickly pulled from the case to make a note in any weather condition. The O-ring is a special rubber that allows the pen to be extracted from the case even in cold weather. For more leisurely writing, the Inka can be transformed into a full-length pen. The cartridge is shorter than a typical pen cartridge but lasts as long since ink is used more efficiently in a pressurized cartridge. Pressurized cartridge refills can be purchased inexpensively online, and regular cartridges can be purchased at any office store. The Inka pen carries a lifetime warranty. The pen debuted at this OR show and is the first offering from entrepreneur and designer Greg Adelman, an optical engineer based in Boulder, Colorado.

Inka pen closed, assembled full length, and the pen grip removed from the steel case

Writing under water


  • Weight: 0.6 oz (0.5 oz without split ring)
  • Length closed: 3.15 in
  • Length full-size: 5.00 in
  • Temperature range: -30 to 300 degrees F
  • MSRP: $30
  • Website:


"Inka Extreme Conditions Pen First Look (Outdoor Retailer Winter Market 2005)," by Carol Crooker. (ISSN 1537-0364)., 2005-01-29 03:00:00-07.