Sleeping Bag. What every adventure traveler dreams of, a micro pack size, lightweight sleeping bag, equally suited for fair-weather backpacking to exploring warm exotic climates but equally capable of handling cooler nights. A high wicking Tactel lining ensures a comfortable nights sleep even when perspiring heavily. The Travelpak Xtreme gives a sub freezing temperature performance in a remarkably small packed unit. Ideal to team up with a silk liner for a versatile layering system.