These's snoots are great for concentrating light from your shoe mount flash.  The snoots can also be used as a flash bouncer/reflector by attaching it in the half open position.

The outside of the snoot is made of tough ballistic nylon (think luggage or backpack material) and the inside is made of gray reflective Teflon. 

SN55: 5" Short Snoot	SN85: 8" Snoot