Have someone sew a camo pouch on the back of the vest or inside of the decoy pouch to fit a camelback hydration pack. My vest has quite a few outside and inside pockets specifically designed for calls, bug spray, head nets, gloves etc. I like a seat since even when spot and stalking I always sit and set up when I want a tom to come in. I sit with my back to a tree to break up silhouette and for safety and spread a box call, slate/ ceramic call in my lap and have a diaphragm call in my mouth. If I have time I'll set out a couple of decoys. I will have on a head net and gloves and the gun will be on my knee ready to aim. If I set up on a tom I spotted my goal is to call him into my setup. I have had that take an hour or two depending on how hot he is and what he has with him. The seat makes it easier to remain comfortable and dry.