The BEABA Insulated Sippy Cup is an excellent choice for a baby boy or baby girl 8 months+ transitioning to drinking on their own. Practical and stylish choice for helping your baby develop the skills needed for drinking independently STAINLESS STEEL STRAW SIPPY CUP FEATURES: The BEABA Stainless Steel Straw Sippy Cup features a slide opening that’s 100% leak proof, open, closed or upside down. Perfect for on the go and to help prevent spills! It’s ideal for busy families and active toddlers who might tip their cup over or carry it around. This kind of design ensures that the cup is not only convenient but also minimizes spills, making it a practical choice for both home and on the go use. INSULATED CUP :The BEABA cup keeps liquids at the right temperature, which is especially useful for both warm and cold drinks. This feature can help maintain the desired temperature of milk or water throughout the day .Double walled insulation keeps liquids cold for 10hrs and hot for 5. Use for water, juice, or milk. Great for toddler travel or baby travel on the go. Pack in lunch box and pair with BEABA food thermos. BABY-FRIENDLY: Baby thermos cup offers a comfortable-to-the-touch exterior that won’t feel hot or cold in the hands. The cup has an exterior that remains comfortable to hold, even when the contents are hot or cold. Stainless steel keeps bottle corrosion & scratch resistant, odorless & unbreakable. BABY'S STRAW CUP: The BEABA Stainless Steel Straw Sippy Cup can help strengthen muscles in the mouth that are important for eating and talking. Using a straw encourages babies to use the muscles in their mouths, such as the lips, tongue, and jaw. Holding the cup and coordinating the sipping motion can help improve a baby’s fine motor skills and hand-eye coordination. Straw on this sippy cup is made from 100% supple silicone. Cup is made with High Grade 316 Stainless Steel. Straw contains a valve that needs to be slightly compressed to open and allow liquid to flow through. Without compression, the valve stays closed in order to avoid spills! The valve is opened when the child bites or presses their lips down on it while sucking through the straw. It’s a similar technique to when they breast or bottle feed, and the straw’s functionality is meant to naturally mimic that familiar motion for them! A drinking range that takes baby from breast to baby bottle to sippy cup, all in one easy system? We’ve made it. Introducing the BEABA Sippy Cup Drinking Range: stylish, thoughtfully designed drinkware to help your baby learn to drink on their own. BEABA’s sippy cup drinking range has been meticulously crafted to help both parents and baby take on this important milestone, with more sips (and fewer spills) along the way! At 4mo+, start with the 2-in-1 Bottle To Sippy Learning Cup, which is fitted with an interchangeable bottle nipple to silicone spout to help ease babies transition from breast to cup in their first drinking endeavors. Then move to our Straw Sippy Cup and Stainless Steel Straw Sippy Cup at 8mo+ to continue baby’s drinking journey – straws strengthen muscles in the mouth that are important for eating and talking. Using a straw encourages babies to use the muscles in their mouths, such as the lips, tongue, and jaw. The entire range is 100% watertight and leak-proof, open or closed or upside down. Perfect for on the go and to help prevent spills! Use them at home or on the go – the range has been specifically designed with spill and temperature control in mind. All sippy cup spouts and straws made from 100% supple silicone, and the handles, which can help baby hold the bottle, can be removed if needed. As always materials are BPA, Lead & Phthalate free.