The original and patented cooling hat insert — U.S. Patent No. 11,266,193
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For the adults on the sideline

Cooling guidance for coaches, parents, and program leaders

Chiller Body is designed for adult use. This page gives the supervising adults — coaches, athletic directors, summer camp staff, and parents — the playbook for using cooling inserts safely with older youth athletes during practice, games, and outdoor programs.

Illustration showing a sweating, overheated thermometer character beside a cool, smiling Chiller Body thermometer character holding cooling inserts

Heat builds up fast under a hat or helmet. A cooling insert flips the script.

Age and supervision boundaries

Not recommended for athletes under 14 without direct adult supervision. Not intended for children under 8 under any circumstances. Always inside a hat, hard hat, or helmet — never against bare skin.

Full Safety Info

What adults can do

The supervising adult is the most important piece of equipment

Cooling gear works when an adult is paying attention. These three habits cover the bulk of safe youth deployment.

Watch the warning signs

Young athletes don't always speak up when they're overheating. Look for flushed skin, slowed pace, irritability, dizziness, or confusion. Pull them out, get them shade, water, and a cooling break right away.

Use cooling as a planned break, not a reward

Build cooling into rotations alongside hydration and rest. A 15-30 minute insert swap fits naturally between innings, sets, periods, or drill blocks. Treat it as required equipment, not optional.

Adult supervision is required

Chiller Body is designed for adult use. We do not recommend use by athletes under 14 without direct adult supervision, and the product is not intended for children under 8 under any circumstances.

Where it fits

Programs where adults already run the show

Use cases where coaches, parents, and program leaders are already structuring breaks, hydration, and rotations. Cooling drops in alongside what you're doing already.

Youth Sports & Travel Teams

Baseball, softball, lacrosse, soccer, football, golf, tennis, pickleball — anywhere coaches need a fast cooling break between innings, sets, or periods. Two inserts per athlete plus a team cooler covers a full game day.

Summer Camps & Day Programs

Outdoor camp counselors, lifeguards, and supervisors can pre-chill a stack of inserts in the morning and rotate them throughout the day. Helps keep staff sharp and gives older campers a structured cooling break.

School Athletics & Marching Band

Athletic directors and band directors deploying for hot pre-season practice or August rehearsals: bulk packs scale to a full roster, and the insert works inside existing helmets, shakos, and caps without modification.

A simple plan

Five steps for a coach or program lead

  1. 1

    Confirm age and supervision

    Confirm every athlete using an insert is 14 or older with adult supervision, or otherwise excluded from the program. Document this in your roster.

  2. 2

    Order two inserts per athlete plus a team cooler

    Two inserts per user gives them a cold one in rotation and a backup chilling. The Bulk Buyers page can help you size the order for a full roster.

  3. 3

    Pre-chill the morning of practice or a game

    Inserts activate at 65°F (18°C). Throw them in a freezer overnight or pack them in a cooler with ice in the morning so they're ready when the team is.

  4. 4

    Brief the athletes once before first use

    Walk through the basics: the insert goes inside the hat or helmet, never against bare skin. If anything feels uncomfortable, pull it out and tell an adult. No exceptions.

  5. 5

    Build cooling into the rotation

    Pair cooling breaks with hydration and shade. After 20-30 minutes of active cooling, swap to a fresh insert from the cooler. Track who has the cold ones so no one gets skipped.

Building a written program for a school district, league, or camp? The Safety Managers page covers EHS rollout planning, and the Heat Stress Prevention guide covers the wider context of hydration, rest, and shade.

Common questions

FAQs for coaches and parents

What age is Chiller Body recommended for?

Chiller Body is designed for adult use. We do not recommend use by children under 14 without direct adult supervision, and the product is not intended for children under 8 under any circumstances. Coaches and parents should review the full Safety Information page before any youth use.

How should an adult supervise use during practice or a game?

An adult should be present whenever an athlete under 14 is wearing the insert. Check on the athlete every few minutes, ask how the insert feels, and watch for signs of discomfort, numbness, skin discoloration, or any unusual reaction. Remove the insert immediately if anything seems off.

How often should a young athlete swap inserts?

Each insert provides 20-30 minutes of active cooling depending on ambient temperature and activity level. For a full game or long practice, plan on two or three inserts per athlete with a cooler on the sideline so they cycle through cold ones.

Are there any conditions that should rule out use?

Yes. Athletes with Raynaud's syndrome, cold urticaria, peripheral neuropathy, circulatory disorders, broken or sensitive skin, or any condition that affects cold sensitivity or thermal regulation should not use Chiller Body without consulting a physician. A full list is on our Safety Information page.

Can I order in bulk for a team or league?

Yes. The Bulk Buyers page covers pack sizing, quote requests, and rollout planning for crews, teams, schools, and events. We can help you plan the right quantity and the cooler setup for a full roster.

Ready to set your team up for a hot season?

Read the safety guidance, plan the team order, or pick up a starter pack to test before you commit a full roster.