Key takeaways
- Loosen everything before you start rather than adjusting in place.
- Set the heel strap first, because it gives you the stable base.
- Toe-loop models go knuckle, then loop, then buckle.
- Pressure on top of the foot means the slack sits in the wrong place.
Chaco sandals are famous for a fully adjustable strap system that fits almost any foot. The system is also unintuitive at first, because the strap is one continuous piece threaded through the sole, so moving slack in one place takes it from another.
Start with every strap completely loose
Before your foot goes near the sandal, loosen everything. Start at the outer buckle and work the slack all the way through the system until the sandal opens up. Adjusting a Chaco while wearing it is the most common mistake, and it leaves you fighting the strap instead of feeding it.
The heel strap comes before the top strap
Place your foot on the footbed with your heel seated properly in the cup. Pull the heel strap snug around the back of your foot first, since that gives you a stable base. Pull the top strap from the inside until it feels secure without pressing.
Toe-loop models have a required order
Adjust the knuckle strap first, then the toe loop, then the buckle. That sequence distributes the slack evenly. Out of order, the loop either cuts into the toe or flaps loose.
Four problems, and where the slack actually is
- Pressure across the top of the foot. Too much tension in the top strap. Feed slack back toward the heel side.
- Heel lifting on each step. The heel strap is too loose, or the slack has migrated forward. Loosen everything and restart.
- The strap will not move. Grit in the channel. Work a little fabric softener in and pull the strap through.
- Rubbing between the toes. The toe loop is over-tightened, so back it off before adjusting anything else.
Seized straps need patience rather than force
Chacos that have seen sand or trail dirt often lock up. Rinse them, then work the strap back and forth through each channel a few inches at a time. Yanking on a dry, gritty strap is how the webbing tears.
