Purchased at a LAVA store. A hydrogen water bag perfect for hot yoga, 1000ml. It has been stored on a shelf after purchase, so there may be some minor dirt, but it has been cleaned and stored, so there are no hygiene issues. Please read my profile carefully and only consider purchasing if you understand and agree to the terms. - Brand: LAVA - Use: For hot yoga - Size: Approx. 1000ml Thank you for looking.