The rolltop closure is a popular design element in backpacks and bags, characterized by its practicality and aesthetic appearance. This type of closure involves rolling up the top of the backpack or bag to secure it closed, which is usually done with a buckle, Velcro or other type of fastening. One of the main advantages of the rolltop closure is its flexibility in adjusting the volume of the luggage. Users can easily adjust the size of the storage space according to the amount of items carried. This feature is especially useful for travelers, hikers or cyclists who need flexible and adaptable luggage.