1, underwear velvet is softer than graphene. Derong adopts special processing technology to make its fibers softer and more comfortable to wear. On the other hand, graphene is hard and uncomfortable to wear.

2. Delong is more durable than graphene. Derong adopts high-tech fiber material, which is elastic and durable and can be washed and used many times. Graphene fibers are fragile and easily damaged. So underwear is made of velvet.