  We set the foundation and formulate the Perfect (Ideal) Hyperfluid. The
latter represents the natural generalization of the usual perfect fluid
structure where now the microscopic characteristics of matter (spin, shear,
dilation) are also taken into account, sourcing a non-Riemannian arena (i.e
spacetime torsion and non-metricity) for Metric-Affine Gravity. We derive the
energy tensors of this Hyperfluid structure and subsequently present the
conservation laws obeyed by them. Finally, we consider a Cosmological
application of this Perfect Hyperfluid and classify some possible forms of this
fluid structure.
