Double Wall Stainless Sauna Water Bottle

Built for the heat. Keeps your water cold while your body temperature rises. The sauna essential you did not know you needed.

Stay hydrated, stay refreshed, and push through your session with the Innie-Outie Thermal-Shield Sauna Flask. Built specifically to tackle the extreme environment of a sauna, this double-wall vacuum-insulated bottle keeps your water ice-cold for hours, even when the ambient temperature is soaring. Its heavy-duty stainless steel build ensures it won't get hot to the touch, and its leak-proof, sweat-proof design keeps your sauna bench clean and dry.

Key Features & Technical Specifications

Advanced Vacuum Insulation: Dual-wall stainless steel technology maintains ice-cold temperatures for up to 24 hours, ensuring your water remains a refreshing escape during your heat therapy.

Sweat-Proof Exterior: The insulated design prevents condensation on the outside of the bottle, so it won’t leave water rings on your sauna bench or become slippery in your hand.

Heat-Rated 18/8 Stainless Steel: Crafted from high-grade, food-safe stainless steel that won't leach chemicals or metallic tastes into your water when exposed to high-heat cycles.

Rugged, Leak-Proof Design: Features a secure, threaded screw cap that ensures no spills or leaks, even if the bottle is accidentally knocked over on your bench.

Key Benefits

Vital Hydration: Drinking cool water during a sauna session is one of the most effective ways to manage your body temperature and prevent lightheadedness, allowing you to enjoy your session longer.

Immediate Sensory Contrast: The contrast between the intense sauna heat and the ice-cold water provides an instant, refreshing boost that can make a long recovery session feel significantly easier.

Sauna-Safe Convenience: Unlike standard plastic bottles that can warp or soften in heat, or single-wall metal bottles that become dangerously hot to touch, this flask is specifically designed to remain cool and functional.