The GMAX AT-21 Dual Sport Helmet has designed from scratch to surpass its competition. The AT-21 is made with lightweight polycarbonate materials offering unparalleled protection meeting or exceeding DOT and ECE safety requirements. With 3 shell sizes for youth and adult sizes, this helmet ensures to have adventure riders of all sizes on and off the road. A drop down sun-shield with COOLMAX interior liner and recessed speaker pockets the AT-21 gives you the best bang for your buck. The COOLMAX removable liner and cheek pads help wick moisture to keep you dry and cool while riding in the harshest of conditions.; Intermediate head shape Made from polycarbonate materials Lightweight Breathable Antimicrobial Quick release closure 3 Shell sizes Removable washable COOLMAX interior liner and cheekpads Drop down sun shield Built in speaker pockets DOT and ECE approved