K-Lock™ Synthetic Gel Packs freeze and maintain a temperature of 0° C throughout the phase-changing process.  They are designed to last longer than ice while remaining safe, non-toxic, and puncture-resistant.  If you need gel packs for shipping meat, seafood, medical supplies, biological material, or any number of perishable goods, K-Lock™ has the gel pack for you!  Click here to see how our gel packs stack up against the competition!