Release your 20K inner wolf

The wolf that lies inside every runner...can be released at your own pace...and this one is to celebrate you wolfing up 20km within any one month! 
As always you will earn a 10% discount at SportsShoes.com
Then you could go for the next distance...  Book now, then you have the whole of your selected month to complete the challenge then, as always, one week to send us your evidence!