1. 2-in-1 Double-Layer Design – Inner & Outer Thermal Bags

This set includes two reusable insulated pouches: a small inner bag for direct phone cooling/warming, and a larger outer bag that adds an extra thermal barrier. Use them together for stronger protection, or separately for versatility.

2. Multi-Layer Insulation for Maximum Thermal Control

Both bags feature a triple-layer structure: silver PU outer shell, pearl cotton middle layer, and reflective aluminum foil inner lining. Designed to keep cold in during summer and retain heat in winter.

3. Smartphone-Friendly with Mesh Pockets & Carabiner

The inner pouch includes dual mesh pockets—one specifically sized for phones. A built-in carabiner clip lets you hang it on backpacks for convenient outdoor cooling or warming on the go.

4. Reusable Hot & Cold Gel Packs Included

Comes with two gel packs that can be microwaved for heat or frozen for cooling. Perfect for outdoor work, hiking, travel, or hot climates—keep your phone functioning and battery safe all year round.

5. Waterproof Zippers & Wrist Straps for Portability

Both pouches are equipped with water-resistant zippers and carry straps. Compact, stylish, and easy to carry—ideal for camping, sports events, field work, or daily use in extreme temperatures.