• Rear seat storage: Quick-release installation, the helmet is stored in the back seat after parking
• Two wrap-around zippers can be opened up to a total of 13crm thicker
• The compartment in the bag is convenient for storage accompanying items of different sizes, neat and orderly
• Double zipper for easy opening and easy storage of large helmet
• EVA hard shell, wear-resistant and pressure-resistant to keep the bag from being deformed
• Reflective edging + reflective Logo design, prompt warning when riding at night
• Comes with shoulder strap to use the helmet bag as a backpack and shoulder bag 
• Comes with a rain cover, no worry to use on rainy days, waterproof and moisture-proof

Specifications:

• Brand: ROCKBROS
• Item number: 30140026001
• Material: PVC+EVA+900D polyester
• Net weight: about 1040g
• Capacity: about 20-35L (expandable)
• Size: about 20~33x32x37cm (length x width x height)
• Function: rear seat bag, backpack, shoulder bag, handbag