Collapsible foraging belt bags slide onto your belt, or you can attach a strap and carry it as a satchel. The mesh allows dirt and spores to escape, and the inside is made of water water-resistant liner that's easy to clean.  The outside is made from puncture-resistant army duck. The bag holds about 3-5lbs. Stack containers inside for pokey, fragile, or small things. The spacious zippered pouch will hold your knife, a field guide, a snack, or small treasures you find along your way!