SIP. DON’T TIP: Now, you can sip and not tip as you drink your favorite flavor! INSULATED: The 40oz. StrawSip™ Tumbler features double-wall vacuum insulation to keep drinks colder for longer. SPILL-RESISTANT LID: This tumbler has a handle and durable, leak-resistant lid with a reusable inner straw featuring StrawSip™ technology for effortless sipping. NO SUGAR, ZERO CALORIES: All Cirkul flavor cartridges are no sugar, zero calories, and contain no artificial flavors or colors. MULTIPLE REFILLS ON THE GO: Each Cirkul cartridge contains an equivalent amount of flavor to six 20 oz. conventional bottled beverages. Results will vary based on dial setting. CUP HOLDER FRIENDLY: The 40oz. All-Day StrawSip™ Tumbler fits in most standard cup holders and includes an added protection ring for extra stability. HAND WASH ONLY: Ditch the dishwashing to keep your bottle fresh! DO NOT USE HOT WATER: Cold or room temperature only! Comes with a pink drink cartridge. Come from pet friendly smoke free home