Re: Kleen Kanteens, idling idly, walking, composting… 1. Kleen Kanteens seemed expensive at $20.00 in 2005.  Seventeen years later, mine may or may not be said to have barnacles. With regular use, however, it has saved over $1,000 compared with disposable water bottles. ($1.00 x 5 days x 52 weeks x 17 years = $4,420.00)…