Boy's Lax Impact Top - MPZ? 3. MPZ? 3 technology delivers protection against impact and collision in a minimalist, performance design. An alternative protection option for players who prefer minimal bulk and maximum mobility. Lightweight, breathable MPZ? padding protection for shoulders, chest, back, and ribs with superior impact qualities. Dual density hard shell shoulder pads for increased protection. Patented foam pad technology transports moisture and dries quickly, with unmatched impact absorption and recovery. Compression molded pad designs for enhanced flexibility, fit and comfort. Anti-odor technology helps prevent the growth of odor causing microbes. Strategic ventilation in high heat zones helps to keep the athlete cool and dry. Machine wash and dry friendly. 88% Nylon/ 12% Elastane. Imported.Fit: Compression Sizes: Youth Medium,Youth Large,YXL, Colors: Black,