The Pentagon Epos 40 is a 40 litre tactical rucksack built around one idea: you decide the layout, not the manufacturer. The entire main compartment is lined with loop fabric, so hook-backed pouches, organisers and admin panels stick anywhere inside it and move whenever your task changes. Outside, MOLLE/PALS webbing runs across the front, both sides and the lid, so the same logic applies to the exterior. The body is 100% 500D nylon sewn with bonded nylon thread, running YKK® zips and DuraFlex UTX® buckles. Access is through a full front zip, with a multi-function admin pocket on the front face, a utility pocket in the lid, and hook-and-loop anchor points at the top front so the panel can be opened quickly one-handed. The side pockets are pleated and enlarged, with a tunnel elastic band that holds a water bottle or a tube in place rather than letting it work loose. Carrying it is handled by Pentagon's Y-psilon shoulder harness, which splits the load across the shoulders rather than hanging it off two straight straps, and a back panel of 3D spacer mesh cut with ventilation channels so air moves between the pack and your back. Hydration is built in, taking a bladder up to 3 litres with a tube exit port on the back panel. The waist straps tuck into a hidden pocket when you would rather not wear them. Also in the Pentagon pack range: the Pentagon Deos Rucksack 65L steps up to a full expedition bergen with an adjustable back, and the Pentagon Minor Rucksack 28L is the lighter day option. Key Features 40 Litre Capacity - Sized for field use, training or several days away Hook-and-Loop Lined Main Compartment - Attach pouches and organisers anywhere inside MOLLE / PALS Compatible - Webbing across the front, sides and lid 100% 500D Nylon - Sewn with bonded nylon thread for seam strength YKK® Zips and DuraFlex UTX® Buckles - Hardware picked to last Y-psilon Shoulder Harness - Spreads the load across the shoulders Ventilated 3D Spacer Mesh Back - Airflow channels keep the pack off your spine Hydration Compatible to 3L - Internal hanging sleeve with a rear tube exit port Enlarged Pleated Side Pockets - Tunnel elastic band holds a bottle securely Front Admin Pocket - Multi-function layout for documents and small kit Lid Utility Pocket - Quick-access storage at the top Quick-Open Anchor Points - Hook and loop at the top front for fast access Hidden Waist Strap Pocket - Tuck the hip straps away when not in use Lid Patch Panel - Hook and loop for ID or unit markings Ideal For Military and Tactical Use - Modular inside and out for mission-specific loadouts Field Training and Load Carriage - 40 litres with a ventilated back for long days Hiking and Outdoor Sports - Hydration ready with secure bottle pockets Travel and Commuting - Front-loading access and organised admin storage Professional Everyday Carry - Reconfigure the interior as your kit changes Technical Specifications Capacity 40 Litres Dimensions (H x W x D) 57 x 30 x 23 cm Material 100% Nylon 500D with Bonded Nylon Thread Hardware YKK® Zips · DuraFlex UTX® Buckles Interior Hook-and-Loop Lined Main Compartment Modularity MOLLE / PALS on Front, Sides and Lid Harness Y-psilon Shoulder Harness System Back System 3D Spacer Mesh with Ventilation Channels Hydration Up to 3L Bladder, Internal Sleeve with Rear Tube Exit Pockets Front Admin · Lid Utility · Two Pleated Side · Hidden Waist Strap Weight 1239g (Black) · 1269g (RAL7013 Green) Colours RAL7013 Green · Black Brand Pentagon Tactical MPN K16101 Warranty 6 Months (Manufacturing Defects) Warranty Pentagon covers this product for 6 months from the date of purchase against proven manufacturing defects in materials and workmanship. If you think you have a warranty claim, contact [email protected] and we will handle it for you rather than sending you to the manufacturer. Products may need to be returned for inspection, which can result in a short processing delay. This warranty is in addition to your statutory rights, which are not affected. Warranty Exclusions Normal wear and tear Damage caused by accident, abuse, negligence or misuse Modification of the product Damage resulting from use outside the product's intended application