I used these indoors. There are no stains, but they show signs of wear. The rubber belt has stretched, but when worn, there's no feeling of looseness or stretching. Please take a look at the detailed photos in the listing (*'ω'*) They have been home-cleaned. No box. Please note that they will be simply packaged using recycled materials m(__)m - Color: Black - Design: Mesh material - Sole: Air cushion, grippy outsole - Straps: Velcro straps - Brand: Nike