When I travel during the spring and summer, I love to pack only dresses and that are made out of lightweight materials.
Here are my favorites/recommendations:
-GoLite reversible Sao Bento dress (formerly Cayambe dress): lightweight; two colors; wrinkle-free; easy to wash; and dries quickly.
-Icebreaker Crush Dress in Stripe: super comfy; anti-itch; odor-resistant.
-Athleta Latitude dress: lightweight.
I'm also updating my wardrobe to include versatile, convertible garments, so that I can pack less when I travel and have a multitude of outfit options. Here are some promising pieces I came across:
-Encircled Chrysalis cardi: can be worn as a scarf; tunic; dress; and other ways.
-Seamly.co Versalette: this looks to be the most versatile piece I've ever seen! Can be worn as a scarf, top, dress, skirt, etc.
-Hipknoties: no buttons or strings -- just a circular loop of fabric where you use clear rubber bands to tie knots wherever you want so you can customize your look according to your body shape.