I bought a pair at
www.store.mpgear.com for $72.(including shipping and 1 free pair of socks) They are on sale for $80 but with coupon code mpgear810 you get an extra 10% off. Than at the end, they offered 15% of next purchase by using coupon code VSC810
My guess is that the 810 means the coupons are good through the end of August 2010