The Pro-X Compression Shirt is here to provide you with protection from unexpected encounters with rocks, thick tree trunks, out-of-control skiers, chairlift towers, etc. The shirt utilizes impact-absorbing pads of flexible foam—placed in the shoulders, collarbone, chest and ribs—that bind together upon impact to absorb and disperse energy. (I.e. the foam might save your precious bones from breaking.) After impact, the foam returns to its original state, hugging your body in an unobtrusive manner and moving with you. It’s sort of like a Spidey-suit of defense.