The City Market provides free compostable plastic bags with handle. They are purchased in bulk (quantities of 500 in a case).
Plastic compostable bags are available from many online vendors. Check to make sure they are BPI certified, are the size you need, and look for models with handles (shopping bags) if you prefer that style.
These are the specifications for the bags provided at the City Market Composting Station:
LARGE COMPOSTABLE SHOPPING BAGS FEATURES
- Compostable shopping bags
- 18 1/2 in (W) x 21 in (L)
- Certified compostable by the BPI (Biodegradable Products Institute) and AIB-Vinçotte
- Meets ASTM D6400 and EN 13432 standard specifications for compostable plastics
- Meets requirements of California AB 1972 (2008) / SB 567 (2011) and Minnesota HF 403 (2010)
- Does not contain any polyethylene or other non-degradable plastics