This GSI Outdoors Microlite bottle is perfect if you want to stay hydrated without lugging around a heavy bottle. It’s a 24 oz vacuum-insulated stainless steel bottle, but it’s designed to be super lightweight – about 1/3 lighter than traditional vacuum bottles. The double-wall insulation keeps drinks cold for up to 24 hours and hot for about 12 hours. The lid has a built-in straw that’s insulated too, so you can sip easily without removing the cap. It’s made from 18/8 stainless steel and has an anti-scratch pad on the bottom. The sapphire blue color is really nice. It’s also 25% more compact than standard bottles, so it fits better in backpack pockets. GSI gives it an ECO Design label because they’re focused on reducing single-use waste. Great for hiking, camping, the gym, or just everyday use. Durable, functional, and good for the planet.