Sea to Summit Passage Insulated Mug

Sea to Summit says:
Built tough from EU food-grade glass-reinforced polypropylene the Passage Mug holds 475ml of your favorite hot or cold drink. The Cool Grip sidewalls allow you to grip the mug firmly even if the contents are hot while the snug-fitting sipping lid keeps those contents from spilling when you&';re on the move. The Passage Mug can be stacked with other Passage Mugs and Cups and is designed to fit into Passage Bowls or Frontier Pots. Dishwasher and microwave safe the Passage Mug is designed to go wherever your adventure takes you.FeaturesHolds a generous 475ml of your favorite hot or cold beverageMade of EU food-grade glass-reinforced polypropylene: easy to clean microwavable and dishwasher safeLight stackable and compact - designed to fit into Frontier Pots and Passage Bowls for space-efficient packingCool-Grip sidewalls allow you to hold the mug securely no matter how hot the contents arePolypropylene sipping lid fits firmly to prevent spillsVolume scale clearly molded into inside of mug for easy measuringDouble-walled construction keeps beverages hot or cold without bulky external insulation Sea to Summit Guarantee is offered for the Lifetime of this product