8. Nirvana x Pendleton Woolen Mills
Nirvana didn’t singlehandedly popularize the flannel, but the Seattle band played a part in its early ‘90s explosion. Would they have done a collab with anyone? Probably not, but if it had to happen, Pendleton, the Portland-based American heritage line, would have been the brand. We won’t guess what the combined effort would have produced, but it would be more enduring than at least half the items on this list.