The Heat Factory warmer is a soft lightweight pouch containing a mixture of iron powder, charcoal, salt, sawdust, and vermiculite. When exposed to the air, an oxidation process takes place that generates heat up to 130 degrees for more than 8 hours. (Bring a heavy-duty zip lock bag to halt the process for use later.) Contents are biodegradable. Unopened, the Heat Factory warmers have a shelf life of three years. Place the heaters in the mesh pockets near the lens and battery, ideally. Toss them inside our camera cases to keep things warm when not in use. Keep your hands and feet warm, too. (Includes 10 heat packs) Please note, all purchases from Porta-Brace Direct are for US ship-to addresses only.
Portabrace cases have been built by hand in Vermont since 1972. And while professional audio and video technology continues to change at a relentlessly fast pace, one thing has remained the same for over 40 years: our commitment to quality. From the highest quality materials, to the hand-built wooden equipment models, to the reinforced sewing techniques designed to strengthen weight-bearing contact points, our production processes are designed to make our cases the toughest and most reliable products available.