This is a PS plastic cup, small size, big belly, straight cup, one hand can hold. Selected food grade materials, every mouthful of peace of mind, pure and odorless. Travel freely, a carry on the go. Wide mouth design, easy to clean. Portable lid, sealed leakproof.is very durable given that it is made of plastic material with an impact and shatter resistant feature. It has a screw-on, spill-resistant sip top lid. It's most noticeable feature is the silicone bands around it for comfortable grip while taking a sip of your favorite drink!