The perfect balance of sleek and stable, our signature UltraFlask has a wider form and a durable 3D welded bottom. Soft and pliable material means you can fit it in most pack and larger vest pockets for a snug and secure fit. Topped with our SpeedFill(TM) Cap for quick refills. Capacity 500 ml / 17 fl oz Weight 42 g / 1.4 oz Dimensions 240 mm x 55 mm / 9.4 in x 2.2 in Material TPU, PP, Silicone, POM, 304SS