Elite Iceberg Thermal 650ml Bottle Double-wall isothermal construction keeps solar heat on the outside and iceberg temperatures on the inside for up to 2 hours Made with resilient and &quot;tasteless&quot; polyethylene so you can drink your water without tasting your bottle or the sport beverage from your last ride Wide mouth opening is easy-to-fill, easy-to-clean and accommodates ice cubes Squeezable design delivers high liquid flow Ergonomic bottle shape is easy to grip