Ergodyne Chill-Its is a broad cooling headwear line stocked across industrial safety catalogs, spanning evaporative and phase-change products. Chiller Body is a single, patented cooling hat insert designed to fit inside most hats, hard hats, and helmets while staying dry on the outside.
| Attribute | Chiller Body | Ergodyne Chill-Its |
|---|---|---|
| Cooling mechanism | Phase-change material (dry to the touch) | Cooling headwear spanning wet evaporative, dry evaporative, and phase-change technologies (ergodyne.com/technology/cooling) |
| Fits inside a hard hat | Designed to fit inside most hard hats — confirm compatibility with your safety program before deployment | Yes for named models — the Chill-Its 6715 Top Insert and 6716 Sweatband Liner attach to the suspension and are advertised to fit most hard hats & safety helmets (Ergodyne product pages) |
| Activation | Freeze 2–3 hours, or a cooler with ice — never contacts water | 6715/6716: soak in water 2–5 minutes. Ergodyne's phase-change technology (a separate product category) activates via ice-water cooler, freezer, refrigerator, or near an air conditioner for 5–60 minutes (ergodyne.com/technology/cooling) |
| Cooling duration | 20–30 minutes per insert, then rotate with a second frozen insert | Up to 4 hours for wet evaporative products (including 6715/6716); up to 3 days for dry evaporative products; 2–4 hours for phase-change products (ergodyne.com/technology/cooling) |
| Environment guidance | Cools via direct contact — not humidity- or airflow-dependent | Per Ergodyne: wet evaporative needs low/moderate humidity and sufficient airflow; dry evaporative needs low humidity and sufficient airflow; phase-change works in hot indoor environments with no airflow required (ergodyne.com/technology/cooling) |
| Typical price | $39.95 (2-pack) | Varies by product — see Ergodyne's product pages |
| Product breadth | Focused — one core product line | Broad — towels, vests, shirts/sleeves/gloves, hats/headbands/gaiters, hard hat accessories, hydration gear, and jobsite fans (ergodyne.com/technology/cooling) |
Ergodyne Chill-Its spans cooling vests, shirts, sleeves, gloves, towels, and hats/headbands/gaiters (ergodyne.com/technology/cooling). For a supervisor who needs to outfit a crew with coordinated cooling across the head, neck, torso, and arms from a single catalog with familiar SKUs, Ergodyne has real operational advantages. Chiller Body is a cooling hat insert; it is not a full cooling-apparel catalog.
Ergodyne's wet evaporative products, including the 6715 and 6716 hard-hat products, activate by soaking in water for 2–5 minutes rather than freezing (Ergodyne product pages). Chiller Body's insert requires a freezer or a cooler with ice. If water is available on-site but a freezer isn't, an evaporative product has a logistical advantage.
A Chiller Body insert is designed to fit inside most hard hats (confirm compatibility with your safety program before deployment), and activates in a freezer or cooler — no water needed on the job site. Ergodyne also sells hard-hat-specific products, the Chill-Its 6715 Top Insert and 6716 Sweatband Liner, but Ergodyne's own instructions describe both as wet evaporative, activated by soaking in water for 2–5 minutes (Ergodyne product pages). Chiller Body's mechanism — patented phase-change material, U.S. Patent No. 11,266,193 — never contacts water during use.
The Chill-Its 6715 and 6716 are wet evaporative products — Ergodyne's own instructions say to soak them in water to activate (Ergodyne product pages). Chiller Body's insert is sealed and stays dry on the outside; the phase-change material never contacts water during use.
Ergodyne states its wet evaporative products — including the 6715 and 6716 hard-hat products — need low/moderate humidity and sufficient airflow to perform (ergodyne.com/technology/cooling). Chiller Body's phase-change insert cools via direct contact rather than evaporation, so it is not humidity- or airflow-dependent.
Ergodyne Chill-Its is a broad cooling headwear catalog with options across the whole body, including evaporative hard-hat products that don't require a freezer. Chiller Body is a single, patented, sealed phase-change insert designed to fit inside most hats, hard hats, and helmets, activated in a freezer or cooler rather than water, and not dependent on humidity or airflow.
Yes. Ergodyne's Chill-Its 6715 Cooling Hard Hat Top Insert and 6716 Cooling Hard Hat Sweatband Liner attach to a hard hat's suspension and are advertised to fit most hard hats and safety helmets. Both use wet evaporative polymer technology, activated by soaking in water for 2–5 minutes, with up to 4 hours of cooling per activation (ergodyne.com/chill-its-6715-cooling-hard-hat-top-insert-polymers; ergodyne.com/chill-its-6716-cooling-hard-hat-sweatband-liner-polymers). Chiller Body is a sealed, patented phase-change insert (U.S. Patent No. 11,266,193) that activates in a freezer or cooler with ice rather than water.
Chiller Body inserts are designed to fit inside most hard hats, including many common models. Confirm hard hat or PPE compatibility with your existing safety program before deployment.
Chiller Body inserts provide 20–30 minutes of active cooling per cycle, then are swapped for a second frozen insert. Per Ergodyne's own technology page, its wet evaporative products (including the 6715 and 6716 hard-hat products) provide up to 4 hours per activation, its dry evaporative products provide up to 3 days, and its phase-change products provide 2–4 hours (ergodyne.com/technology/cooling).
Both brands solve heat stress, but with different physics. Mission HydroActive uses evaporation — it needs water and low humidity to work well. Chiller Body uses phase-change cooling — it needs a freezer (or cooler with ice) and performs the same at 40% humidity or 95%.
Frogg Toggs Chilly Pad is one of the most widely sold evaporative cooling towels in North America, and it is inexpensive. It is also not a cooling hat insert — some users cut Chilly Pads into strips to fit inside a hat, but that is a DIY workaround to a problem Chiller Body was designed to solve directly.
The original patented cooling hat insert — U.S. Patent No. 11,266,193. Two cooling levels, reusable all day, fits inside hats, hard hats, and helmets.