Sleep soundly under the stars with The North Face Dolomite One Sleeping Bag - Regular. Featuring a unique multi-layered construction, the Dolomite One incorporates innovative Heatseeker Eco technology: The top layer's 50-degree insulation is perfect for warmer evenings and the mid-layer's 30-degree insulation locks in much-needed heat when temperatures drop. Comfort-focused details include its roomy rectangular design and a mid-layer comfort fleece liner. Use each layer individually or combine them for even more warmth. Adjust ventilation with the Dolomite One's zippers, designed to open from the bottom.