ADJUSTABLE SHOULDER STRAP: sling it over your shoulder and free up your hands, for comfortable, easy carrying on the move. INSULATED CORE: this insulated bottle bag with shoulder strap has a polyethylene core, designed to help keep drinks hot or cold. INTERACTIVE DESIGN: a wash of pinks, purples and blues gives this 100% polyester bottle carry bag an iridescent look. USEFUL INFO: also features a mesh phone pocket and a food safe lining; meets BS: EN12546-2:2000; 12 month guarantee.