Sport helmet Do you know the correct way to wear a helmet? 1.Wear the helmet flat atop your head, not tilted back at an angle! 2.Make sure the helmet fits snugly and doesn't obstruct your field of vision. 3.Make sure the chin strap fits securely and that the buckle stays fastened. Meas:88*44*58cm Pcs/ctn:30pcs N.W:4.5kgs G.W :5.0kgs Moq:1000pcs