Minnesota company St. Croix, which makes the mock black turtlenecks that Steve Jobs famously wore, is having a banner sales week.

Sales more than doubled yesterday, the day after Jobs' death, according to the Minnesota Business Journal, and some stores have run out of them.

The black model is also listed as unavailable on the company's Web site, although you can order it in plenty of other colors. It costs $175. The company offered to donate $20 to the American Cancer Society for each one sold.

Republished with permission from BusinessInsider.com. Authored by Matt Rosoff. Photo via AP.