Pacsafe 55 featuring patented exomesh ultimate security technology the pacsafe is an adjustable high tensile stainless steel locking device designed to cover and protect a variety of bags and packs from tampering pilfering and theft throw it around your pack secure it to something fixed and get on with your adventure four sizes mean there is one to fit almost every type of backpack soft sided wheeled luggage or duffel bag pacsafe 55 with exomesh for the experienced trekker or thos