Was it hot in an Ewok costume?

In a word 'Yes'! My Ewok costume consisted of a foam body shape suit covered in a layer of synthetic fur. The three fingered gloves and feet were separate. My Ewok head was only put on immediately before a take because once it was on, there was nowhere for the hot humid air to escape to. This caused the orange tinted plastic eyes to mist up reducing my vision to almost nothing. A ventilation/anti-fog system for the Ewok heads was devised, but with limited effectiveness.