双十二 (December 12) is Alibaba's secondary shopping festival, launched in 2012 as a follow-up to its blockbuster
双十一 (Nov 11). It's positioned for smaller merchants and fashion / lifestyle categories that didn't get top placement on Double Eleven. Discounts and total GMV are noticeably smaller, so it's often called
双十一的余热 ('the leftover heat from Double Eleven').