D30 protective inserts, the basis of the Launch Pro D30 elbow guard from Fox Racing solve the dilemma between padding and flexibility. D30 is an unusual polymer which is flexible while applying energy slowly and safely - imagine that you bend your elbow. However, when exposed to a sudden impact, the material hardens , absorbing and dissipating energy, and then returning to its pliable shockproof form.

We know this all sounds too good to be true but it's true. The thing works. And so that it remains operational during numerous impacts and seasons of operation Fox protects it with an abrasion-resistant, replaceable cap.