You don't have to buy anything. Use what is there. Find a big tree, and stack limbs around it to sit behind. I have done alot of hunting on the gound, and I look for a big tree to sit against, and then I put up my portable rolled up camo skirt on metal stakes around me. Killed 2 of my 4 deer last year on the ground. P.S> Scentblock works especially if you hunt on the ground.