A 30-second beginner's guide to the lasso strap.
Feed the tail of the strap through the loop to create a lasso. Do the same on both straps.
Slide your hand through so the strap sits across the base of your palm, tail coming off the little-finger side.
Wrap the tail around the bar, under, around, and back over the top, until it's snug.
Roll the bar toward you to tighten, then grip hard. The strap takes the load off your fingers so grip won't fail first.
Common mistakes
Wrapping the wrong direction (rolling the bar should tighten, not loosen).
Too loose, cinch it down.
Using them for everything, keep some raw-grip work too.
Deadlifts, rack pulls, barbell and dumbbell rows, shrugs, and heavy back work, anywhere grip is the limiting factor.