Kimonos are on trend right now and they have the added bonus of being both super comfortable and effortlessly stylish. I picked one out here from In Love with Fashion. The jeans are the ever classic Top Shop Leighs, with a little rebellious rip in the knee. Easily DIYed on any other pair too.
I’ve included a couple of plus sized clothing options too. For the jeans, you could do these (up to US 24) or even these (up to US 18). American Eagle’s clothing is a bit vanity sized, and their sizes go up to XXL online. Here’s a link to some of their basic tees.