product description: 

1> Material: HDPE

2> Unique breathe freely design, provide the comfortable fit for head

3> WITH VENTILATION ON TOP MAKES HELMET MORE FRESH AND COMFORTABLE AND SUITABLE FOR LONG-TERM WEARING. 

4> TWO SUSPENSION FOR CHOOSE, 6 POINT TEXTILE SUSPENSION WITH PIN-LOCK AND 6 POINT PLASTIC SUSPENSION WITH PIN-LOCK