I'm probably too late for your trip but for future reference: if you aren't too put off by the expensive prices, I've found a lot to love at Athleta (particularly their Trekkie hike pants and shorts and their Headlands cargo tights). Super comfortable, flexible, quick-drying, high quality, just all around perfect for outdoor adventures. I'm a huge fan, their clothing holds up on international travels to backyard camping shenanigans.