I find startfitness.co.uk is generally cheaper than wiggle.co.uk for athletic shoes and gear, and there are some even better deals with this coupon. I believe this is the lowest price for the Kayano ever posted on OzBargain. :)
Start Fitness is particularly good for Asics, since eastbay.com/footlocker.com has shipping restrictions for this brand to Australia.
Asics Gel Kayano 17 (Men's UK sizes 6, 7, 11) - £66.59 delivered (Wiggle £80.98)
Asics Gel Kayano 16 (Men's UK sizes 6, 8, 9, 10, 11, 15) - £63.09 delivered
Asics Gel Kinsei 4 (most sizes available) - £101.15 (~= $153.82) delivered
Asics GT 2160 (most sizes available) - £52.47 (~=$79.68) delivered
Post in comments if you see any other stand-out deals!
Coupon can be used on all items in store, including clearance items. Go through checkout to see price including delivery and with the 20% VAT removed.
As I posted in another bargain:
"For those wishing to purchase Asics Kayanos - may pay to shop elsewhere. In the last few weeks the price has gone up significantly at Wiggle and is now around the AUD$200 mark. If you change the delivery location to another country, you will see the price drop. Unfortunately, I think Asics have had a word in Wiggle's (and other online retailers') ears."