Cupsty collapsible cups are made of recyclable plastic which makes them eco-friendly. FDA certified platinum food-grade silicone is used along with FDA-grade polypropylene, which makes it temperature-safe and microwave-friendly as well. It is pertinent to mention here that our cups are free of BPA, BPS, Lead, and adhesives. Most importantly, these cups are DFA certificate assured which means they won’t damage the environment. Last but not the least, we use biodegradable FSC certified material for packaging that is easily composted.