The 27 oz. Klean Kanteen™ Classic w/Sport Cap is perfect for your on-the-go life. Whether you're trying to juggle a full day of classes or work, the kids' extracurricular schedules or a trip to the dog park, just one or two fill-ups will help you stay hydrated and happy all day. Soft silicone spout, leak resistant, chirp and whistle free relief valve. BPA free. Weight: 8 oz.