Cotton Cinch is a lighter weight stretch fabric with a soft handfeel made with 88% organic cotton, 12% spandex. Wash cold + dry flat. More on fabric & care. Fabric Cotton Cinch is a lighter weight stretch fabric with a soft handfeel made with 88% organic cotton, 12% spandex. Organically grown cotton doesn’t allow genetically modified seeds and restricts the use of many chemicals. It still uses water and land but it helps sustain the land it is grown on through crop rotations and natural ways…