Lululemon brand new with tag most popular hard-to-find discontinued Run All Day Backpack II. Its color code is MUMB/BLK. This backpack was designed with an ultra lightweight harness to keep the air flowing when you're adventuring. 

Its features are as follows:

- Fabric is water-repellent, durable and easy to wipe clean.

- 360 reflectivity helps keep you on the radar in low light.

- Waistband straps provide stability for a low-bounce run.

- Pockets on the harness for easy access to gels

- Moulded back panel with ventilation helps keep you comfortable.

- Removable waistband strap and adjustable sternum straps let you customize the fit.

- Side stash pockets for extra gear when you're on the go.

- A quick-access phone pocket helps keep you connected.

- 23cm x 41cm x15cm (9" x 16" x 6")    Volume 13L

IT'S ALL YOURS.