Soft foam construction ensures comfort and breathability for extended wear
Peel-and-stick backing allows easy application to any hat sweatband
Reduces hat size by 1 cm per strip for customizable fit
Can be used individually or in combination for tailored sizing
Does not require tools or permanent modifications to the hat
Summarized by Shop
Peaky Hat Size Reducers.
Each reducer is sold individually, does NOT come in a pack of 4.
These are soft foam strips that can be used in the sweatband of your cap to reduce the size and increase comfort. If you are in between sizes and order one size up, these reducers can make the cap smaller, decreasing the size by .5-1CMs if you use on
Material
Soft foam
Application
Peel-and-stick to sweatband
Size Reduction
1 cm per strip (1-2 cm per 2 strips)
Quantity
Sold individually (not in packs of 4)
Compatibility
Fits most hat sweatbands
Summarized by Shop
4.9
61 ratings
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These are a good way to adjust a better fit on a loose fitting cap, since there is real inconsistencies in sizing in caps.
S
Stephen · July 1, 2026
These hat size reducers are a total lifesaver 🙏 bought a few hats a while back from another company. Flat caps to be specific. I have a very small head, and sometimes fit an xs and sometimes a small. One of the smalls that I bought was a little loosey goosey on my bald head. Threw one of these 3m size reducers in, and now that same hat is an everyday hat
Stoked. Next I will be getting a couple caps from Peaky 🤘
C
Cameron · April 24, 2026
Super top notch excellent product. I’ve been needing these things for years.