Sublimation Coating: Our sublimation tumblers are made of premium quality 304 stainless steel and with top quality sublimation coating which is perfect for heat transfer DIY making, the special coating makes your print brighter and no foggy, no fading. Straight Body: The straight body design makes it is easy to wrap your tumbler with full wrap, reduces failure in your sublimation work, so that you can make your own personalized birthday gift or Christmas gift using heat press machine or convection oven. Keep Cold and Hot: The vacuum double-wall construction keeps your coffee hot for 9 hours, and keeps your beer cold for 12 hours. The ice will not melt fast in hours and coffee brewed in the morning is still piping hot at noon! Portable and Easy to Clean: This tumbler is slim and lightweight, so it is portable to hold and carry, it also fits in most car cup holders. With smooth inside surface and wide mouth, it is easy to clean. Suitable for home, office, outdoor, traveling, camping, parties, picnics, BBQ.