A new lightweight, comfortable and sustainable seat design by using Fused Deposition Modelling to print the TPU cushioning. By using this technique, a cushion with different gyroid infill percentages can be made, that supports the human body where needed. This way no extra weight is used, only what is necessary. And this improves the comfort of the passenger on short/medium distance flights. TPU does not need flame retardant coating, this way it can be fully recycled at the end of life.