4-Pack Urban Worm Bag Version 2For the Ambitious Vermicomposter The Durable, Breathable, Attractive Home Worm Bin Solution Create organic fertilizer inside or outside your home or apartment using nothing more than common household waste like newsprint, cardboard, and food waste. The Urban Worm Bag is Durable The Urban Worm Bag is built with 900D oxford fabric lined with a water resistant, but breathable liner. It features marine grade zippers on the top and a zipper free patent