These laces are very thin for boots.  It's hard to tie the boots tightly when the laces are thin like these.  And I'm pretty sure I'll break one sooner than I would if it were thicker.

The packaging was also strange.  Instead of using the package shown in the product picture, these were delivered in a little zip-lock baggie.  It looks like I bought them from a dealer on the corner.  Not impressive.

The price is good and the convenience is OK, but the quality really isn't what I was expecting.  By the way, shipping shouldn't be an issue in a product review, but this product wasn't actually available as stated.  So instead of being delivered the next day on a Tuesday (to replace my broken boot lace), it was delivered on Friday.  All in all, this whole experience was unimpressive.