This useful Medic bag comes with a fully adjustable shoulder strap. 

Tech Specifics:

• Fully adjustable shoulder straps 
• Color:  Olive Drab
• 1 Large main compartment
• Reinforced seam stitching
• Strong hard-wearing cotton
• 100% Money back guarantee
• Size:   W:12 1/2" x  D:3 1/2" x  H:11"  / 32 x 9 x 28 cms

It has one large pocket,  with front flapover cover fastened with leather straps and buckle.  On the front flap is a Medic's First Aid cross outlined in red. 

This hard-wearing bag in Olive Drab heavyweight cotton is ideal for carrying your first aid gear and water bottles.

Or you could use it as a unique laptop bag, with lots of space for notebooks, pens, keys etc.