I purchased this about a year ago (⁎ᴗ͈ˬᴗ͈⁎) I believe I wore it once indoors, and it looks to be in good condition with no noticeable stains, at least to my untrained eye♪ The waist is elastic, and I usually wear a size L, but it fit perfectly. When I wear it (I'm 160cm tall), it hits just above the knee (˶•ᴗ•˵)