banding vs hatband

banding and hatband both are nouns.

Word	Noun	Adjective	Verb	Adverb
banding	Yes	No	No	No
hatband	Yes	No	No	No

As nouns, hatband is a hyponym of banding; that is, hatband is a word with a more specific, narrower meaning than banding:

banding: an adornment consisting of a strip of a contrasting color or material
hatband: a band around the crown of a hat just above the brim

Other hyponyms of banding include cigar band, neckband, pinstripe, cap band.

banding (noun)	hatband (noun)
an adornment consisting of a strip of a contrasting color or material	a band around the crown of a hat just above the brim
a stripe or stripes of contrasting color