similar deal to https://www.ozbargain.com.au/node/843269 that was highly voted.
there's also a couple of codes that you can redeem to buy 2 and get further discount
buy 2 qualifying items and get 6% off
and also buy 2 and get 10% off with code QXUTZSBGZGJX
I redeemed both codes and bought 2 pairs for $36.07 ($18.16 each)
Thanks OP. Did the double coupon for two.