The 20 litre Isabella Backpack is designed to fit a woman's frame & provides a useful volume without overloading feminine hikers. Small doesnt mean basic. This lady pack's svelte construction features a large main pocket with a universal sleeve, mesh zip pocket & two slip-in pockets. The secondary compartment has organisation. The simplified bungee cord system on the pack's face means that you can cinch down a rain jacket, or similar for easy access. The chest strap is fitted with an attention seeking whistle. Great detail & engineering goes into even our smallest packs & the Isabella combines a womens specific fit with technical innovations & padding that reflects the latest thinking in protecting strain prone areas on a lady's frame.