This Portable Outdoor Coffee Mug is Made Primarily of Plastic & is Designed for Outdoor Use. Its Main Feature is Portability, the Lightweight Design Makes It Easy to Carry During Travel, Camping, or Hiking. It Also Benefits From the Inherent Lightweight & Durability of Plastic. Some Models Support Logo Print & Are Available in a Variety of Colors Including Military Green, Beige, & Yellow. the Mug is Molded Using Plastic Molds, Resulting in a Simple Structure That is Easy to Clean. It is Versatile & Suitable for Various Scenarios Such as Outdoor Activities, Home Use, & In-car Use.