Custom BLC Logo Plan D Pocket Standard featuring our most popular crab pattern, the Dinghy Crab! These are perfect for smaller streamers, or big nymphs and dries! Or turn them into your favorite saltwater pattern go-box. The Plan D Pocket Standard is a great all purpose box for medium to large fresh and saltwater flies. The Pocket is the little brother to the Pack and the perfect box when you want to travel light. Plan D Boxes are tough, water resistant, and our choice for organizing flies.