The brand's packaging and logo have been overhauled by Vibrandt. The new-look packs will be introduced this month across the Tuc range, which comprises Original, Cheese Sandwich and Mini variants.
Each pack will carry the "Tuc in" strapline, first used in last year's television campaign, created by Euro RSCG London.
Three-dimensional on-pack images of the biscuits will aim to increase product appeal at point of purchase and the yellow background has been brightened.
Jacob's is also introducing a multipack of individual Tuc Sandwich snackpacks, with lunchbox appeal in mind.
TV ads for the brand break next month, with a second tranche in September.
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