With only one main compartment and the Fishpond signature zip-down fly bench, you have space for necessities and not much else. This is exactly what makes it unobtrusive and comfortable to wear. It hangs around your neck with the included padded neck strap, while another strap wraps securely around your body, keeping it from swinging and out of your way.
The San Juan will hold a large fly box, leaders, tippet and maybe some floatant and split shot. Tools like nippers and zingers can be attached to the external tabs on the pack.
One unique feature of this chest pack is that it has a belt loop attachment on the back of the pack, so you can hook it to your wader belt (or the South Fork wader belt) or any belt for that matter.