Limited edition for 95th anniversary of HKGGA. -Vacuum insulation provides excellent heat retention. -Superior Heat/Cold retention. -Heat rating: 63 degree @ 6 hrs. / 53 degree @ 12 hrs. (*Rating is based on water at a starting temperature of 95C at a room temperature of 20C) -Elegant and compact design. -Stainless design, easy clean. Just clean it by water, and dry it by towel. get done! -Slim and less weight, suitable for picnic.