Snacks
Lay's Classic Party Size shrank 14.8%
Lay's's Lay's Classic Party Size went from 15.25 oz to 13 oz — first documented at the reduced size around August 2020. Price history is evaluated separately.
Before · August 2019
15.25 oz
After · August 2020
13 oz
Package size
-14.8%
Unit-price effect at the current price
At the available tracked price of $5.99, the earlier package quantity works out to $0.3928 per oz, compared with $0.4608 per oz for the reduced size — a 17.3% difference in cost per unit. This applies one current price to both documented package sizes to make them comparable; it is not historical price evidence.
Source
Verified against Mouse Print* (mouseprint.org), which states both the before and the after size for this product. Added to Shrunk's browse feed September 2025.
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