I used these for changing clothes at daycare. I think they can be worn in size 70-80. ・UNIQLO ・H&M ・hushush ・kladskap ・Nishimatsuya Some items have pilling, but they can still be worn. The last UNIQLO item has a faint stain that won't come out. I hope you can use it for days when you don't mind getting clothes dirty, like for painting or playing in the mud.