ThinkGeek.com offers the rarely-discounted SCOTTeVEST Personal Area Network Pack Windbreaker in Graphite for $49.99. Coupon code "GIFT10" cuts it to $39.99. With $5.79 for shipping, that's $35 below what SCOTTeVEST charges direct and the lowest total price we could find. It's available in sizes L and XL.

Want it by Christmas? Choose ground shipping and order by December 17 if you're shipping to the western US. If shipping to the eastern US, ground shipping will work until December 20.