he needs a motorcycle helmet

I just bought my brother the motorcycle he likes as his birthday gift last November. Now since his only been borrowing a helmet which is really a must to have when your driving a motorcycle. Now his tired of borrowing to his best friend, so he wanted me to send him one on my next balikbayan box. He said it is not important to him if it's expensive or a second hand as long as he will have one. So right now I'm shopping online for affordable motorcycle helmets so I can get him one. I was gonna send him a money to buy a helmet but I'm sure he will only spend it, which he thinks it's more important than helmet. So it is really better for me to just buy him one here and send it to him.