Anyone in the US ordered from MEC/Canada? What kind of customs cost was there?

" I have a -7 C (~20F) down mummy bag, but for winter add a synthetic overbag (MEC Penguin Overbag) which adds 5 to 10 degrees C to the system getting me down to around -12 to -17 (~ 10 to 1 F). The other advantage of the overbag is that it protects the down inner bag from condensation."