I know we have a lot of merino fans here - I recently got a an absolutely gorgeous merino shibori wrap from Cypress+Snow on Etsy. It's lightweight, packs down well (I advise a size 2 TSS, but you might squeeze it into a 1), and has the durability of a solid merino tee rather than a gauzy ring pashmina. After my Sitka Travel Tray and battered Hobonichi, it's pretty much my favorite thing.

Modern textiles accessories by CypressandSnow on Etsy