Hybrid open air astro turf field. So bizarre this stadium. It's like being in Mordor.

The surface is composed of monofilament polyethylene blend fibers tufted into a polypropylene backing. The infill is composed of a bottom layer of silica sand, a middle layer which is a mixture of sand and cryogenic rubber and a top layer of only rubber. The fibers are meant to replicate blades of grass, while the infill acts as a cushion. This cushion improves safety when compared to earlier artificial surfaces and allows players to plant and pivot as if they were playing on a grass field.[5] Proponents of the surface also cite its low-cost maintenance and durability.