Matter Compostables Party Cold Cups are eco-friendly, plant-based disposable cups designed for parties, picnics, tailgates, and everyday gatherings. This Costco-exclusive bulk pack includes 132 cups, each with an 18 oz capacity — ideal for cold beverages including water, lemonade, punch, and soft drinks.

These cups are BPI Certified industrially compostable, meaning they will break down within 12 months when sent to a commercial composting facility. They are made without BPA and contain no added PFAS additives, making them a safer alternative to conventional plastic party cups. The cups are also gluten-free and nut-free. Their durable yet lightweight construction holds up well through events while staying easy to carry and stack.