Sometimes, the highest praise I can give something is that I don't notice it. It seems contrary, but it's often true. Brilliance comes with the obvious. If you can look at something and say, "well, that's obvious and someone would have come up with it in anyway," ask yourself why no one has. That is good design.
LaceLocker is a simple product that perform a basic task - you just attach it and forget about it. Here is their video that sums up the process of putting them on your shoes. The video is 18 seconds long and a fair gauge of how long they take to install.
StashSports sent me a pair to try out for review. After receiving them, I decided to use them on three different pairs of shoes made by three different companies to see how they performed with different footwear.
I started with my Brooks PureCadence 2s. As you can see, they hold the laces in place and when I ran, there was no flapping about. Overall they were a great success - super match.
However, when I used them on my Saucony Kinvara 3s, they don't fit quite as well. They only held on to one row of laces. The tongue holder prevents the device from sliding under a second row, and it's not quite long enough to catch the third row. I wear a size 13 running shoe, so that may not be an issue for smaller feet. Also, even though it was only being held with one row, it did hold the laces securely for a good 10 mile run with some definite headwinds. It just wasn't as aesthetically pleasing.
For my third set of shoes, I chose my Altra Torins. On these shoes, the tongue holder was in the way again, but there was plenty of room to slide it under on the side. Again, the laces stayed in place and there was no trouble.
I really like the fact that I can move the LaceLockers from one pair of shoes to another with ease, so one can buy a single pair and get full utility out of them if on a budget. I think that they are priced very well and can represent a savings from having to buy special non-slipping laces for each pair of shoes. I also like the fact that you retain the ability to retie and adjust your laces quickly. When I have my shoes double-knotted, I have to almost make sure that they are welded perfectly in place because I won't be changing the configuration any time soon.
The product is actually so simple that I could have summed up the whole review in a short tweet - "LaceLockers, they're simple and they work."
They can be purchased for $7.95 and up on their website - http://www.lacelocker.com/purchase.html.
One interesting option is that they allow custom orders - http://www.lacelocker.com/customorders/ That could be a really neat item given out at races.