A 4 material Padel racket, this full size model are "almost" according to the rules and regulations from the Padel association. The only issue is that some regulations describe the Padel racket to be made up by two parts, as in this case it might be questionable due to the fact that it is printed as one part. I neither have a large enough build plate or possibillty to print with 4 materials, so I´ve made a test print in 35% the size with only two materials. My thought are that the Padel racket will be printed with a hard material for the frame, like Nylon or some carbon like filament, the middle part can be of a hard plastic like PETG, and the inside foamy part will need to be in a bouncy TPU material, I guess with a hardness of 85A, the nice "caliper" handle can be printed in TPU with 95ish hardness. For the frame I guess a higher value of infill is better, for the handle 100%, the middlepart 20% and the foamy part in the middle will have to be guessed according to the TPU hardness and the bouncyness.