Arctic Ice Tundra Series Reusable Ice Pack, X-Large (5 lb) — Freezes at 5°F for Long-Lasting, Freezer-Like Cooling in Coolers

Built for long outings, tailgates, fishing trips and food transport, the Tundra Series uses a specialized phase-change material that solidifies at 5°F (-15°C). Instead of the cold source melting and warming your contents, the Tundra pack absorbs heat so frozen food stays solid and cold-sensitive items remain protected. For peak performance, place the pack in a freezer set to at or below -5°F for 24–36 hours until the pack is fully solid.

How does the Tundra pack keep frozen items colder than regular ice?

The secret is a high-performance phase change compound formulated to freeze at 5°F. While ordinary ice melts at 32°F and warms the cooler as it liquefies, the Tundra pack remains colder longer and absorbs more heat per pound, slowing temperature rise inside the cooler.

• Phase-change material freezes at 5°F for extended cold retention.
• Higher latent heat capacity than water ice, so it protects frozen goods.
• Solid panels reduce temperature spikes when cooler is opened.
• Durable outer shell contains melt and prevents spills.

What are the best freezing and storage practices for maximum performance?

To get the Tundra compound fully solid, set your freezer to its lowest setting—ideally at or below -5°F—and leave the pack for 24–36 hours. Keep packs stored in the freezer so they’re ready to use; if left at higher temperatures they’ll soften and deliver reduced cooling time.

• Freeze below -5°F for 24–36 hours until fully solid.
• Store upright or flat in freezer for instant access.
• Return packs to the freezer after each use to maintain readiness.
• Do not rely on Tundra for liquid-only cooling tasks—it's optimized for preserving frozen goods.

How does this pack perform compared with loose ice and other reusable packs?

Tundra is designed to produce colder starting temperatures than standard reusable packs and to outperform bagged ice in longevity and convenience. Unlike melting ice that becomes puddles, the Tundra panel contains melting inside its casing, keeping contents dry and removing the need to continuously buy bags of ice.

• Lasts longer than standard ice and reduces mess in coolers.
• Helps lower overall ice usage—costs can be recouped after a few trips.
• Can be paired with ice to extend cooling life even further.
• Robust 5 lb X-Large format covers more cooler surface area for even cooling.

What safety and usage notes should I follow?

The Tundra Series is built for repeated use but requires the correct freezer temperature to unlock its full capabilities. Avoid puncturing or cutting the shell; if the pack is breached, dispose of it responsibly according to local regulations.

• Do not microwave or heat the pack; use freezer only.
• Do not ingest contents; keep away from children and pets if damaged.
• Rinse with mild soap and water; avoid abrasive cleaners.
• Replace if the outer shell shows cracks or leaks.

Who is this for? The Arctic Ice Tundra Series X-Large 5 lb pack is ideal for anglers, caterers, outdoor enthusiasts, and anyone transporting frozen goods who needs reliable, extended cold. It’s particularly useful when you want freezer-like protection without the wet mess of melting bagged ice—perfect for long road trips, multi-day camping, event coolers, and professional food delivery. If you want a reusable, heavy-duty cold source that prioritizes keeping frozen items solid, the Tundra Series delivers optimized freeze-point performance and durable, no-mess cooling.