There are a few marked-down trail shoes in the mix. The all-terrain Divide 5 is known for its impressive traction and breathable feel. Heads up: This one is selling especially fast. The Cascadia 18 GTX boasts a waterproof upper to ward off rain, while delivering on stability and grip to help you navigate uneven ground.

The Transportation Security Administration's shoe rule expired on Monday, relieving fliers of the requirement to remove their footwear while passing through security before boarding a plane.

“TSA will no longer require travelers to remove their shoes when they go through our security checkpoint," Noem said at the press conference.

"We expect this change will drastically decrease passenger wait times at our TSA checkpoints, leading to a more pleasant and efficient passenger experience," Noem said in a statement.