Zak Designs Hayden Tea 16 oz. Double Wall Tea Tumbler, Sapphire 16.5-ounce insulated travel tea tumbler with infuser for brewing loose leaf tea to your liking Double-wall insulation keeps tea warmer longer and screw-on lid with flip top prevents spills so you can enjoy your hot tea while on the goo Unique infuser design easily brews loose leaf tea to your liking; includes cap for easy removal and drip-case to prevent messes after steeping Screw-on lid with integrated flip-top cap that stays open while you drink but closes firmly to prevent spills Made of BPA-free, durable SAN plastic; hand washing recommended; do not microwave