Newegg offers the KEF M200 Hi-Fi In-Ear Headphones in Aluminum/Black for an in-cart price of $79.99 with free shipping. That's tied with our October mention ago and the lowest total price we've seen. (It's a current low by $10.) They feature 10mm LF and 0.5mm neodymium MF/HF drivers, 20Hz to 20KHz frequency response, volume controls with inline microphone, and secure earclips.

Note: It's not guaranteed for delivery by Christmas. Also, if you haven't yet, use coupon code "MBLMASTERPASS15" and pay via MasterPass using Newegg’s mobile site or iPhone / Android app to cut it further to $64.99. (This discount can only be used once per account.)