Used, silver color REI dry bag. Roll top with shoulder straps. No known holes. The bottom black part is at least double thickness.
Measures 42" full length, the silver part is 36". Laid flat, it is 24" wide, which roughly calculates to the 110 liter size.
$55.00 shipped, or $40 picked up at my profile location. PayPal to friend, or check is fine. (possible CANOECOPIA delivery pending scheduling conflict resolution)