The original and patented cooling hat insert — U.S. Patent No. 11,266,193
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Build Cooler, Build Safer
Keep Your Crew Protected

Chiller Body cooling hat inserts for homebuilders and residential construction crews. OSHA-compliant heat stress prevention for framers and carpenters.

How It Works

1

Freeze

Freeze your Chiller Body inserts overnight or for 2-4 hours before your shift or game.

2

Insert

Slide the frozen insert into your hat, helmet, or headwear for immediate relief.

3

Stay Cool

Enjoy 20-30 minutes of intense cooling. Swap with a backup for all-day protection.

Frequently Asked Questions

Does it fit inside a hard hat?

Yes. The insert is thin enough to sit between your head and the hard hat suspension system. It does not interfere with the hard hat's safety rating or fit. Many construction crews wear it under a liner or bandana inside the hard hat for added comfort.

Is it OSHA-compliant?

The Chiller Body insert is a passive cooling product — it contains no electronics, chemicals, or pressurized components. It does not modify or compromise PPE. Using it inside a hard hat does not void the hat's ANSI/ISEA Z89.1 certification, and it supports OSHA's heat illness prevention guidelines.

How do crews share/manage inserts on a job site?

Most crews keep a shared cooler on site stocked with frozen inserts. Workers grab a fresh one when their current insert warms up and drop the used one back in the cooler for the next freeze cycle. Bulk packs make it easy to outfit an entire crew affordably.

Does it work in extreme heat (100°F+)?

Yes, though the insert will warm up faster in extreme conditions. At 100°F+, expect 15-20 minutes of active cooling per insert rather than the typical 20-30. Having extra inserts on rotation is especially important on extreme heat days to maintain continuous cooling.

Stay Focused.
Stay Cool.

Join thousands of professionals and athletes who trust Chiller Body for relief.

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U.S. Patent No. 11,266,193