"My Bearded Dragon is lazy and stays in the same place I put him."

"I will always be right next to him."

"I won't let him go anywhere dangerous - only in my yard."

"I'm putting him into a kiddie pool. He can't possibly climb out."

"They can't be THAT fast."

These are just a few reasons why you DON'T need a leash, yes?     

Here is why you DO need a leash:

Your Bearded Dragon (or Uromastyx, or Iguana, or Monitor) is completely dependable and predictable. That is, up until the moment you decide to take them outside. Then, they turn into high-jumping track stars who have never seen you before and hate you.  They can jump out of the kiddie pool and make a beeline for the deepest, darkest crevice deep inside the sharpest, pointiest plants.

and YES - they are THAT FAST!

It only took one heart-stopping sprint across the grass chasing a Dragon to realize I stood no chance of catching him before he dove into a dangerous-looking crevice under a pile of fallen branches. The next internet search made was for a bearded dragon leash, and there were a few that showed up, but one design in particular caught my eye; this one.  These leashes are well fitted to your lizard, and are designed to be comfortable and safe for them to wear. There is no chafing, rubbing, or cutting, and your dragon won't wiggle out of it.  These harnesses are washable, and come in many different colors and textures. They work great and look great, too!