Knee Wraps

[Cobalt]

What does,"bails" mean in this scenario? Buckles? Hurts?

If I go really slowly, there is a point where pain sets in. If I keep going just a little bit, the knee just loses all power.

The pain isn't bad, but it's there. It also isn't always there, some days I can squat the world, others I'm just a little girl.