The BlenderBottle Strada Insulated Stainless Steel Bottle adds new features to the BlenderBottle you know and love. The Strada Insulated bottle mixes protein shakes to perfection with a stainless steel BlenderBall wire whisk. Plus, insulated stainless steel keeps your drink perfectly chilled so you don't end up drinking a warm, melted shake halfway through your workout. This bottle even features a push-button open and secure locking system on the lid. Enjoy convenience on the go with the BlenderBottle Strada Insulated Stainless Steel Bottle.