Comparison · Updated April 2026

ClemaCore vs ice vest

60-90 min vs 8-12 hr. No ice. No freezer logistics.

By Clément Messeri · CTO · Materials engineer, UC Berkeley

At a glance

Side-by-side comparison.

Spec	Ice vest	ClemaCore (solid-state)
Runtime per cycle	60–90 min	8–12 hr
Refill requirement	Ice / freezer access on site	None — hot-swap battery
Works in humidity	Yes	Yes
Worn weight	3–6 lbs (frozen)	<2 lbs
Fits under PPE	Bulk varies; often interferes	Designed for under hi-vis / FR / fall-arrest
Cost per cooling hour (industrial use)	High — ice logistics + short runtime	Low — one-time cost spread over years
One-time cost / worker	$50–$200 + ice supply	$500 (one-time)

Pick an ice vest if…

Ice still wins for short, predictable tasks.

For 60-90 minute outdoor tasks with reliable freezer access at the truck or in a break trailer, a simple ice vest is cheap and effective. They work in any humidity and require no battery.

Pick ice1-hour outdoor crews with truck-mounted coolers.
Pick iceEvent support, parade marshals, sideline staff.
Pick iceShort hot-task interventions inside larger cool shifts.

Pick ClemaCore if…

Solid-state wins for industrial shifts.

Construction, refinery turnarounds, foundries, line-worker storm response, warehouse picking. Anywhere the worker can't stop at the truck every 90 minutes for a fresh ice swap.

Pick Clema8+ hour shifts without freezer access on site.
Pick ClemaUnder FR, fall-arrest, or arc-rated PPE.
Pick ClemaCrews that move (no fixed-location ice depot).
Pick ClemaIndoor radiant-heat environments (foundries, steel).
Pick ClemaOSHA / Cal/OSHA / state heat-rule compliance plans.

Related guides

Keep reading.

Full Comparison

PCM, evaporative, ice, circulatory, solid-state.

ClemaCore vs PCM Vest

Phase change vs solid-state.

ClemaCore vs Evaporative Vest

Dry climate vs humidity-proof.

Summer 2026 — 500-unit first batch

Replace ice vests across your crew.

Apply for early access Run the ROI calculator