Polar Camel Sippy Cups are 10oz double wall insulated powder-coated cups featuring removable handles, a silicone boot, and spill proof lid. The screw-on lid features a hard plastic spout with a leak-proof rubber valve. The cup can be used with or without the heavy-duty plastic handles attached to the lid. They offer plenty of space for personalization and can be taken apart for easy cleaning. The plastic lid may need occasional deep cleaning.