What are the dimensions of the velcro area on the rear of the helmet cover? December 13, 2020 19:40 The dimensions of the velcro area on the rear of the helmet cover is 5x7 cm. Have more questions? Related articles Do you sell a helmet cover for my helmet? What Helmet Cover fits the Hard Head Veterans Helmet? Is the Rear Pouch removable? When will x Be Back in stock? Will this helmet cover fit my FMA or replica helmet?