If you're prone to losing things then it's probably best to pick up an extra Avanti Go Cup Replacement Lid. Made to fit onto the Avanti Go Cups, this lid is leak-proof so you don't have to worry about any accidental spills while you're out and about.

Features:

• Fits both 280ml and 410ml Stainless Steel Go Cups 
• BPA Free 
• Spill-proof 
• Polypropylene and silicone