A backpack is a huge bag that can be carried by trekkers or soldiers when they are going for respective outings or missions. The main utility of a backpack is the amount of room it provides for the user to stuff the necessary goods required for a successful expedition. A backpack is endowed with a pair of removable auxiliary side packs. Each of the auxiliary side packs is associated to the main backpack by several pair of fasteners, and one clasp of each pair is linked to the main backpack by an adaptable band. The flexible straps can be tightened to prom dresses uk alter the capability of the supplementary packs. The backpack usually comprises of a top and a bottom panel of pockets for storage. Also they have a facility of back and side sections which can be utilized to keep certain items. An upper pair of fasteners attached to each side of the main pack gives the user the flexibility to fasten the belt of the backpack as per his convenience. A lower pair of fasteners attached to each side of the main pack adjacent the bottom panel is attached to the main backpack with the help of an adjustable strap. Both these upper and lower fasteners are attached to the auxiliary packs on the top and the bottom respectively. This gives the customer the facility to adjust the size and the shape of the backpack and decide how much room he wants in his backpack. A backpack manufacturing company should make sure he is not infringing any laws or copying anybody's patented design when he is producing a backpack. There are other ways also of producing adjustable and flexible backpacks apart from using only detachable auxiliary packs. The backpack manufacturing company should use Duraflex fasteners and buckles in order to give it the same features that the auxiliary fasteners gives. The backpack buckles are made up of highly durable plastic or metals which ensure protection of the items kept in the backpack. However the backpack fastener gives the opportunity to the customer to seal the backpack when not in use. The position of these backpack buckles and fasteners has to be very strategic in wedding dresses order to fully exploit the purpose of a backpack. If attached on the correct belt and at convenient locations the size of the dresses for weddings backpack can be partially adjusted as per the needs of the user. The traditional design of a backpack will generally sport a detachable jessica mcclintock prom dresses auxiliary pack incorporated in the backpack by its manufacturing company itself. However the various modified versions of the backpacks that are commercially available may not be having them attached and so there are also separate fasteners available to help the customer with adjusting capacity provided by the backpack buckles . One such variety is of a Velcro fastener for the backpacks which is loosely available and can be easily attached with the backpack to modify it as needed. Backpack buckles if are not in-built, can be attached to the straps separately to make sure second hand wedding dress better security of the stuff stored inside it.