When you're out on a trek and every ounce counts, but you still need a supportive backpack, the Osprey Eja 48 is your ideal choice. This mid - sized backpack offers just the right amount of space for long - distance hikes, preventing you from overpacking. Seasoned backpackers will love its industry - leading comfort and ventilation, all without the extra weight usually associated with such features. It's perfect for thru - hikes and ultralight adventures on trails like the AT or Colorado Trail. If you need to shed some weight, the integrated FlapJacket can replace the removable floating lid. The refined AirSpeed® suspension maximizes airflow between you and the pack, keeping you cool and comfortable mile after mile. It's crafted from 100% recycled materials.
**Features**:
- Top pocket web loop attachment points for easy hanging.
- Removable floating lid with top and under - lid zippered pockets for organized storage.
- Integrated FlapJacket cover for lidless use.
- Internal hydration sleeve with a center back hose port to keep you hydrated.
- Front stretch mesh pocket for quick gear stashing.
- Dual - access stretch mesh side pockets for convenient access.
- Dual strippable side compression straps to adjust the load.
- Web lash points for attaching extra gear.
- Removable sleeping pad straps.
- Dual ice axe loops with bungee tie - off.
- Dual zippered hipbelt pockets for keeping essentials close.
- Stow - on - the - Go trekking pole attachment.
- Sternum strap with an integrated safety whistle.
**Sizes**:
- XSmall/Small: Volume 45L, Dimensions 70H X 36W X 30D cm, Weight 1.209 kg.
- Medium/Large: Volume 48L, Dimensions 75H X 36W X 30D cm, Weight 1.251 kg.
**Sizing Guide**:
To measure your torso length, first, find the top of your hip bone (iliac crest). Then, touch your chin to your chest and feel for the large protruding bone at the base of your neck. Measure the distance between these two points. Here's a torso - to - pack size guide:
- 35.5cm (14'): XSmall
- 38cm (15'): XSmall
- 40.5cm (16'): XSmall or Small
- 43cm (17'): XSmall or Small
- 46cm (18'): Small or Medium
- 48cm (19'): Small or Medium
- 51cm (20'): Medium
- 53cm (21'): Medium
- 56cm (22'): No suitable size





Using your Osprey Eja 48 backpack is a breeze. First, adjust the shoulder straps and hip belt to fit your body properly. This will distribute the weight evenly and make your hike more comfortable. When packing, use the different pockets and compartments to organize your gear. The top - pocket web loop attachment points are great for hanging small items, and the side pockets are handy for quick access to things like water bottles or snacks. If you're using the hydration sleeve, make sure to fill your water bladder and route the hose through the center - back port.
For long hikes, the integrated FlapJacket can be used to replace the removable floating lid when you need to save weight. When attaching extra gear, use the web lash points and the dual ice - axe loops with bungee tie - offs. The trekking - pole attachment is useful when you want to stow your poles.
When it comes to maintenance, after each use, shake out any dirt or debris from the backpack. If it gets dirty, you can use a mild soap and lukewarm water to clean it. Make sure to rinse it thoroughly and let it dry completely before storing. Avoid using harsh chemicals or abrasive materials, as these can damage the fabric. Also, store your backpack in a cool, dry place to prevent mold and mildew growth.