At the Marathon expo last year i saw a stall that had laces that had for want of a better word lumps every half inch or so, when pulled tight the lump dissapears so the laces can be pulled tighter/loser etc, i think they were about £10 and shouldn't come loose etc, i now can't remember the name of them, can anyone help??
Thanks in advance
Are these what you mean?
http://www.sportlink.co.uk/running_shoe_laces/xtenex_running_laces/Xtenex_Running_Shoe_Laces