The Winner Outfitters 3-4 Season Mummy Sleeping Bag with Compression Sack is made of 350T Polyester with coating shell makes the sleeping bag ultra soft, waterproof and rip-stop, So it can keep you warm even in extreme weather and prevent you from any dampness.

Comes with 200G/㎡ Hollow Fiber fill which enhances non-allergetic, pro-environmental and better insulating performance. You’ll feel comfortable when temperature is between 35F and 40F. But these are designed to keep the average sleeper warm even at near-freezing temperatures(20F).

The bag has 350T polyester lining which is skin-friendly and soft, you feel very comfortable and sleep like kids or baby when you lie in it.Our sleeping bags are also extremely easy to clean as they are safer for machine wash too.

Thanks for the Mummy design, this sleeping bag weighs only 2.8 pounds. Mummy sleeping bag not only fit adult body very well, but also reduce extra weight. Moreover, each sleeping bag comes with a travel-friendly carry bag, a compression sack with straps, which makes it quite convenient to store and carry the sleeping bag along.

It’s really perfect for camping, hiking, travel and Outdoor Activities. With SBS double slider zipper, it can adjust the temperature according your demand. So the camping sleeping bag could be used in 3-4 season.

SBS is the famous zipper company like YKK. Every zipper takes 120,000 times stretch test to make sure the performance. The bag has draft collars and zipper draft tubes, which could prevent warm lose and cold come in. Finally it enhance insulation performance with the draft tubes.