CLEYCYE Collapsible Water Bottle Portable - BPA Free Silicone Foldable Water Bottle for Travel, Sports, Outdoor and Gym, 18 oz Leakproof Lightweight Water Bottle with Carabiner for Kids/Adult, Black
I love using this when I travel because it's so easy to collapse. It's lightweight, I like the color, and it's really cool that it shrinks down to a small size when It's empty