Heavy duty 1680 denier polyester construction, with large open compartment for quick tool access. Features multiple pockets and tool holders for organisation, as well as padded laptop compartment, and IP54 water-resistant welded compartment for personal belongings. Comfortable, ergonomic air mesh padded back and padded shoulder straps. Durable, rigid waterproof plastic base. Ballistic Nylon Construction Plastic Base Dual Zipped Opening 43 x Pockets Including: 2 x External, 13 x Internal, 9 x Tool, Laptop Compartment and IP54 Water-Resistant Pocket(s) Shoulder Strap & Handles Durable Plastic Base Ballistic Nylon Construction Plastic Base Dual Zipped Opening 43 x Pockets Including: 2 x External, 13 x Internal, 9 x Tool, Laptop Compartment and IP54 Water-Resistant Pocket(s) Shoulder Strap & Handles Durable Plastic Base