Material type 304 Stainless Steel No of pieces 1 Capacity 300 ml Insulation type Double wall Temperature retention Yes No sweat Exterior Keeps liquid hotcold upto 6 hrs hot 12 hrs cold Leak proof Yes Wide Mouth 60mm for easy cleaning Inner and Outer side of mug is made from 304 Grade Steel which is Rust Free and 100 Food Grade Strong handle making grip comfortable and Leak proof screw Lid design with Silicon seal makes it spill proof Best Usage It Can be Used for Outdoor Sports Gym Work Trip Travel OfficeSchoolCollegeGymPicnicHome