The 'Crockz - no support' .stl file does not require any support but the same shells and fill as below apply.
The necessary support has been designed into the 'Crocz' .stl file. On a well set up machine the support should peel away easily if printed according to the following settings.
Printed with PLA
Raft not essential but recommended
Standard / 0.20mm resolution
3 or 4 shells
60-75% infill (varying this will affect how springy your Crocz are)
No support required... it's designed in on the 'Crocz' file and not required on the 'Crocz - no support' file.
Scaling up/down is not recommended as it will affect the clearances of the designed in support (Which is necessary for the legs that come out the side of the body)