The VaprThrm^® NTS Vest is a sleeveless version of the NTS shirt (surprise, surprise).  A good  garment to experiment with if you are not yet totally sold on the merits of vapor barrier clothing. The vest features a light-weight, rapid-wicking, quick-drying lining. Mesh pockets are located above pack-strap for easy access and venting.  Simplified lycra binding seals in the heat on the arms and waist. The vest can be worn next to skin or over lightweight base layer.