(Of a garment, pocket, bag, etc.) able to be fastened with a zip:a white zip-up jacket...
While the concept of a cardigan isn't all that hip, this zip-up sweater's high collar and corduroy detailing on the front pocket give it an updated appeal.
He was wearing a gray zip-up sweater jacket with a hood.
He was wearing a blue baseball cap and a blue zip-up jacket with blue jeans.