Is it the styling or the packable hat/ fast-dry clothes aspect you are after? You need a brick and mortar store, or will a website do?
If it's the styles dooneygirl is right, esp. about J Jill.
If you are looking for TRAVEL travel clothes the standbys are TravelSmith; and Orvis.
Also Ex Officio and Magellan?s.
Athleta can be useful. Lucy has a travel section. Sahalie and Patagonia are good.
Try Title Nine too.
This has been my good deed of the day. We now resume our regular procrastination.