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Sublimation is a longer lasting way of printing onto items. This is because the Sublimation ink is infused into the item unlike Vinyl Items where it sits on top of the item and will eventually crack and come off.
Sublimation is done by Heat activated Ink and will last longer, won't run and also will not Fade.
Vinyl Items are still good to purchase as they are cheaper but still look good and Vinyl is better for other items that Sublimation is not.