JUST THE RIGHT SIZE: Main Compartment:17.7″x9.4″x4.7″, Secondary Compartment: 15.7″x7.8″x2.75″, Upper Front Pocket: 4″x7″x2.3″, Lower Front Pocket: 9.8″x7″x2.3″. Small but sufficient enough tactical hiking bag, Capacity: 20 L. This size suits both women and men. If you need larger one, have a look at this B01AUFK3EM.
PROFESSIONAL DESIGN: It has a roomy main storage area, dual FRONT POCKETS. MOLLE style ACCESSORY LOOPS on front. Padded and breathable mesh back panel and shoulder straps offer cushioning comfort, while also promoting air circulation along your back and shoulders, Almost the best simple & useful tactical backpack at this price.
MADE OF 600D OXFORD CLOTH: Made of durable 600D nylon oxford cloth with a water-repellant coating. The Military Tactical Backpack has durable construction with Heavy-Duty Waterresistant Nylon pack cloth construction and heavy-duty oversized zippers for extra durability. This is upgraded version, it’s much more firm than before, so some reviews in the year 2005 may not be suitable now for purchasing reference.

Handy, versatile 3 ways carrying style (Shoulder Bag, Chest Sling – Back Sling, Hand Carry) ,small MOLLE pouch.
Small, compact, goes anywhere design is perfect where large packs are too big, too bulky, too heavy.
Rugged premium construction from upgraded 600D fabric – Lightweight, durable material with adjustable, detachable strap. Perfectly suits you body shape.

Roomy main drawstring-closed compartment provides generous and secure storage space for your gear
Front pocket for quick access; interior pocket for convenient, separated storage; concealed back pocket with zipper closure
Fully adjustable, padded, and ergonomic shoulder strap for comfortable carrying

Adjustable Removable Shoulder Strap
Handy, Compact, Suitable for Short-Distance Travel
Used Good Hardware, Nylon Suture, Stronger and easier buckles