Osaka Armadillo 4.0The Armadillo 4. 0 consists out of 11 different compound plastic shells combined with 2 types of foam. These overlapping high tech materials combined in specific areas ensure that all areas of your hand are protected during play. Compared to last years model, the glove has been made much easier to put on, and we have optimized the fitting. We have also increased the thickness of padding in high risk zones.