There's now a 2600 hat for all seasons! This black knit ski cap has a 4"x2" "2600" embroidered in silver thread. It's the perfect way to show your hacker spirit when it's just too cold out for a baseball cap or for when you simply want that knit cap look. It's a known fact that hackers lose 70% of their body heat through their heads. This also solves the problem of identifying yourself as a 2600 reader when your 2600 t-shirt is buried under four layers due to the blistering cold.