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Shop UniHeat Shipping Warmers

Heat Packs for Cold-Weather Shipping & Temperature-Sensitive Shipments

Shop UniHeat air-activated shipping warmers designed for plants, beverages, reptiles, aquatics, foods, meal kits, cosmetics, and other temperature-sensitive shipments during cold-weather transit.

Choose from our most popular 40 hour, 72 hour, 96 hour, and specialty-duration heat packs for insulated packaging environments, regional shipping routes, severe winter conditions, and extended transit windows.

40 Hour Heat Packs 72 Hour Heat Packs 96 Hour Heat Packs Bulk Case Quantities Cold-Weather Shipping

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Cold-Weather Shipping Support

Choosing the Right UniHeat Pack Matters

Heat pack performance depends on more than duration alone. Transit time, outside temperatures, insulation quality, airflow, carrier delays, box size, and shipment sensitivity all influence cold-weather shipping results.

UniHeat packs are commonly used in insulated shipping environments for plants, reptiles, aquatics, beverages, chocolates, meal kits, cosmetics, and specialty perishables that may require additional warmth during transit.

40 Hour Heat Packs

Shorter Transit Windows

Often used for regional shipments, overnight transit, and situations where moderate cold exposure is expected.

72 Hour Heat Packs

Standard Winter Shipping

A popular choice for many cold-weather shipments where carrier delays or ground transit may increase exposure.

96 Hour & Specialty Warmers

Extended Cold Protection

Recommended for longer shipping routes, severe winter temperatures, remote destinations, and sensitive shipments requiring additional duration.

For best results, UniHeat packs should be used with insulated packaging, proper airflow, minimized void space, and practical cold-weather transit planning. Testing packaging setups before severe winter shipping is strongly recommended.