Klean kanteen silicone pint cup to go ring description because our kanteen steel pints are designed to replace plastic and paper cups they really need to travel with you and the pint rings make that super easy your empty pint can be clipped to almost anything check out our kanteen s biners or just swung from your finger pick a colour outfit your pint and see how many single use cups you can refuse in a week a month or a year you will be doing your part and showing everyone wh