The eco-friendly metal flask water bottle features a stainless steel construction that is ideal for keeping drinks nice and hot or cold. The Flannels branding completes the look in our true minimalist and modern aesthetic. Perfect for the everyday as well as on the go travel. • Maintains heat: 12 hours • Maintains cold: 16 hours • Designed with double wall construction to maintain temperature for hot and cold drinks • BPA free • 500ml capacity