Collocations for cotton - noun

100%, pure
a pure cotton T-shirt

light, thin
She was shivering in her thin cotton dress

fine
soft
raw
combed (esp. AmE)
natural, organic (both esp. AmE)
plain
printed
mercerized
sewing (BrE)

bale, bolt

grow
pick
plant
wear

fibre/fiber, thread, yarn (AmE)
ball (esp. AmE), bud (BrE), swab (AmE), wool (BrE)
field, plantation
farmer
picker
industry
mill
gin
cloth, fabric
shirt, sock, sweater, etc.
reel (BrE)
candy (= sticky threads of melted sugar)