Stack your sessions. With two or three inserts in rotation, one is always frozen and ready to go.
Three medical-grade freezable inserts, each in its own food-safe pouch. Compatible with every Sauna Theory shorts.
2 hours from room temperature in a standard household freezer. They stay cold for 25–30 minutes inside a 194°F sauna.
Rinse under cold water after each session, towel dry, refreeze. Lifespan: 400+ freeze cycles.
3-pack — $21.99. Free shipping when added to any shorts order.