Moisture-Free Cooling Packs Moisture-Free Cooling Pack - great for keeping cool on hot days or during heavy activity. Package of 4 cool packs. These super cooling packs are very easy to use. Just place in your freezer until frozen, then slip them into the V-Pac pouches! These packs last as long as your activity does!  Set of 4 - $8.00 (+ $10.00 Shipping) Heat Packs Package includes four heat packs. These great packs are air-activated and will keep you toasty warm for up to 18 hours!  Set of 4 - $3.50 (+ $10.00 Shipping) Gel Cooling Packs Package of 4 packs. These unique cooling packs freeze but don't get hard!  Their gel consistency keeps you cool and comfortable at the same time!   Set of 4 - $10.00 (+ $4.00 Shipping)