I bought these specifically for an even that I entered called Mudrunner Oblivion.
I needed them to be cheap as I didn't expect them to be used again; light as I had an 11km assault course through mud to complete and have a good grip for the very steep slopes that I would be encountering.
They performed admirably! When my feet got stuck in the mud, they didn't come off. The lace became untied once, but the design and the laces kept the trainer firmly around my feet until I could safely stop.
Added bonus, I put them in the wash at 50 degrees and they came out as good as new!