These full color tumblers are created using a process called Sublimation- using heat and pressure to transfer ink onto the surface- this gives me the ability to create full color and HD designs on tumblers. Clear coat epoxy resin can be added but does not need. I will recommend adding the epoxy resin layer, for added durability and dimension for the design and tumbler Stainless steel double wall insulation holds cold drinks 24 hours and hot drinks for 12 hours- no sweating on cup Comes with lid & straw Hand wash only. Not dishwasher or microwave safe
