Breathable Cycling Helmet Bicycle Helmet Ultralight Integrated Bike Helmet Safety Cap Cycling Equipment

2-in-1 design, can be used as a pot or water mug. Titanium material provides light weight while still keeps durable. Dimension: 4.0in * 4.3in (D * H), capacity: 750ml. Round edges for efficient heat and easy cleaning. With a lid and foldable grip handle.