fma navigation board rotary for gps phone black Work in progress The water resistant main compartment zipper The water resistant main compartment zipper protects electronics and sensitive materials even in rain Velcro patch panel on the front: useful for quick identification or operational personalisation but offers lower retention than a rigid holster or a system with a mechanical locking catch: anyone operating in environments with a high risk of physical contact or frequent falls should consider whether the elastic velcro restraint is adequate for their context designed for operators and hunters who need to keep their navigation or communication device accessible while on the move