Swiftwick socks are now at Great Northern Bicycle Co. I've been using these socks for a while now after my Smartwools died, and I love 'em. They come in a number of different heights and essentially two different flavors, the Pursuit (merino wool) and the Aspire. Personally, I love wool socks year-round, and with winter coming, I'm looking forward to warm toes. Nothing says 'Merry Christmas' like a new pair of socks.