BKR glass bottle with silicone sleeve in sheer hot pink Baby 16 oz Little size (500ml/16oz) reusable glass bottle with a smooth, protective silicone sleeve. The official color name is Baby, it is a bright pink that is slightly sheer. Rarely used - excellent condition. I have two of these so I almost never used this one. Last photo shows my own bottle (I have two) and how I put little time marker stickers on the inside to track my hydration :)