From the same company that manufacturers "Rite in the Rain" products comes this belt case that can hold one 4-3/4 x 7-1/2" field book, an acid bottle, and 3 pens or pencils.  The interior is specially coated to make it waterproof.  Two 2-1/2" belt loops attach the case to your belt, while a durable buckle secures the coverflap over the supplies.  Constructed of 1000 denier Cordura nylon.  (Field book, and acid bottle are sold separately.)  Available in Olive Drab Green color.  Shipping weight 2 lbs.