Envelope style sleeping bag is a spacious popular camping accessory that is easy to carry with compression bag. Made of a waterproof polyester shell with poly-cotton lining. Hat drawstring can adjust the size of the hat, better windproof. Comfortable and simple design style, can quickly receive a sleeping bag. High quality hollow cotton, clean, warm and fluffy. Ultra light, portable, moisture proof and breathable. It includes a storage bag, practical and convenient. Custom logo is available.