350ml Collapsible Silicone Coffee Mugs are great for outdoor excursions. Saving space in your backpack when heading outdoors is always a plus. Take along these innovative coffee mugs C they collapse to a small size when not in use. The mugs are manufactured from silicone and have a polypropylene cup holder to protect your hands from the heat. A great promotional giveaway for any company offering outdoor products or activities. Material – BPA Free; Food Grade Silicone & PP Certification: CMA, FDA, LFGB, PONY. Lead time is from confirmation of artwork approval.