I have now trialled your lace kit on 3 pairs of running shoes over 3 differing conditions. The lace kit came through with flying colours.

The first trial was on an 8 to 9 mile off road run on rough paths, trails and through water. The Lace Ace held its tension through out and did not need adjusting.

The second trial was on a 5 to 6 mile steady road run. Again no problems arose.

The third trial was on a 5km speed trial again on road but obviously during much faster pace. Again the tension held without any problems. In fact I had tightened the laces on one shoe too tight and had to undo the laces to ease the tension slightly. This was not a fault of your kit and in fact it held the overtensioned lace well.

The kit was easy to use.

Paul Jarvis, Hoad Harriers, Cumbria