Will people in blue jeans and black mock turtleneck shirts be spotted in coffee shops, cubicles and tech trade shows throughout Silicon Valley? Let’s hope not. Get ready for Steve Jobs lookalikes sporting blue jeans and his trademark St. Croix mock black turtleneck shirt swarming Silicon Valley. St. Croix says sales of its popular cotton pullover have doubled since Steve Jobs’ passing last week. For every black mock sold, St. Croix plans to donate $20 to the ongoing fight against cancer. More than just a shirt, Jobs’ black turtleneck set the tone for casual fashion at many Silicon Valley tech companies. From the wind-blown hair of Google CEO Larry Page to the T-shirt-wearing Mark Zuckerberg of Facebook, top Silicon Valley executives hope to tap the comfortably creative genius of Jobs. (The most notable exception, of course, is Oracle’s suit-wearing Larry Ellison.) Slideshow: If Corporations Were People… The turtleneck is just the tip of the iceberg when sizing up Jobs’ influence on Silicon Valley culture, which is probably why Silicon Valley is still in a funk this week. To be fair, Jobs, too, tapped the creative energy of Silicon Valley, with its liberal colleges, diverse culture and futuristic thinking. It’s no surprise that Jobs gave his famous commencement speech at Stanford University in 2005. Also, one of his last acts was to propose plans to the city council of Cupertino to build a Silicon Valley landmark office building that looks “a little like a spaceship has landed,” he said. Jobs wore his mock black turtleneck at every recent major Apple announcement and product launch. The shirt has become a symbol of creativity and success. Now everyone wants to be Steve Jobs. But where, exactly, will one be wearing this shirt? At Silicon Valley trade shows? Inside Silicon Valley cubicles? Standing in line at Silicon Valley Apple Stores for the iPhone 4S? It would be similar to a few years ago when golfers wore Tiger Woods’ trademark red shirt and black pants on golf courses. It’s a little creepy. Demand has been so high for St. Croix Style 1990 classic mock black turtleneck that the apparel retailer has sold out of them. St. Croix says it is now accepting orders for this item to be shipped by October 28. Just in time for Halloween. Now that’s really creepy. Related content Opinion Google Bigwig Eric Schmidt Posts Bizarre Guide for 'Converting to Android from iPhone' Google's Executive Chairman wants you to switch from iPhone to Android, and he posted a strange guide to help make the transition as smooth as possible. By Al Sacco Dec 09, 2013 2 mins Smartphones Android Operating Systems Opinion Apple's 'Spaceship' Campus Evokes Jobs-Era Perfectionism Some facts have emerged about Apple's planned "spaceship" campus. Delayed and over-budget but painstakingly detailed, it's already part of Apple history, and makes CIO.com's Tom Kaneshige nostalgic for Steve Jobs' maniac By Tom Kaneshige Apr 05, 2013 3 mins Financial Services Industry Innovation IT Leadership Opinion Apple, Where Art Thou? Apple is under siege and uncharacteristically running for cover amidst mounting competition and research reports favoring Android. By Tom Kaneshige Mar 12, 2013 2 mins Smartphones Tablets IT Leadership Opinion Is Computer's Future a Glass House? According to Google and Corning, glass surfaces and eyeglasses are where we'll do our computing in the future. By Tom Kaneshige Mar 06, 2013 1 min Small and Medium Business Innovation Mobile Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe