Trek Collapsible Water Bottle can store up to 800 ml water. Soft collapsible bottle with non-slip & heat insulation design, easy to fold to 40% its original size when empty, making it compact and convenient to carry. Made of FDA Approved food grade silicone, leak proof and BPA free. Comes standard with silicone band attachment, super lightweight, easy to clean, ecofriendly and a thermostable design. Able to handle hot or cold drinks, wide size bottle mouth can easily fit ice cubes and fruits.