Here is a beverage container different from most. Our mission at Royal Fit is to provide the public with the best accessories in the health aid, wellness, fitness and sports category. Since extending our presence online we have come to realize that the best just hasn’t been done yet and there is still work to be done. We have our new style beverage infuser bottle that is gauranteed to satisfy in style and functionality. This bottle is made up of two unnoticeably intricate layers. On the interior, it is built strong with Borosilicate Glass which is known to withstand temperature shock that regular glass can not stand up to. Temperature shock is when a material such as glass is rapidly heated and cooled by something as simple as hot tea in the container followed by ice water. When this temperature fluctuation happens to normal glass, the glass becomes weak due to molecular bonds loosening. The second layer of the bottle is comprised of a hardened silicon material to do two very important things. mainly its goal is to prevent heat transfer which would prevent skin burns from hot beverages while also preventing body heat and other external heat from ruining a cold beverage. The second function of the outer layer is to be non slip while also having a gloss look. During our manufacturing process we purposely leave the silicon gasket/seal inside packaging to be installed by the consumers so that they know how it works. The silicon seal is also removeable to be able to be cleaned. New design includes rides on cap to provide grip in the event of over tightening. TIPS: 1. Install seal into cap, push all the way in with a dull item like a spoon or popsicle stick. 2. After installing seal, rinse with water before screwing cap on to bottle. 3. Overtightening is possible, to prevent; Do not use excessive force to tighten cap closed. 4. Bottle comes with a strainer-like component that can be used to, but not limited to; prevent tea and fruit from falling out.