One company in particular that has been making large strides is Windpact which has a new type of foam that they call “foam in an airbag”, or “Crash Cloud”, which compresses when energy is absorbed and dissipates the energy through impact vents then rapidly reinflates. Current foams are limited by certain factors the affect the usefulness of the foam which is the limited amount of space inside of a helmet. Helmets cannot be too big or be too constricting on the player so a balance must be found between performance and safety. Another limitation is that not every hit is equal to another. Foams inside of today’s helmets perform best when impacted directly and are not the best at hits coming from different angles or “rotational impacts”.