If you've found someone to share your sleeping bag with, you're halfway there. The versatile Dolomite One Double is Heatseeker Eco-insulated and can be configured for comfort in a range of climates. The top layer features 50-degree-rated synthetic insulation for versatile use in warmer weather, and the mid layer features 30-degree-rated synthetic insulation for cool nights in the outdoors. Together, the two layers can pair to get a 15-degree bag - that's called maximum versatility.