Spend summer and shoulder season nights stargazing inside the camping comforts of Marmot's NanoWave 35 Sleeping Bag: 35 Degree Synthetic. Lightweight and durable, the NanoWave 35 won't take up much room or weight in your pack so you can bring it along on all your bike touring and backpacking trips. SpiraFil high loft insulation stays warm even if it happens to get wet and the draft tube blocks cool breezes from sneaking through the full-length, two-way zipper.