Our heaviest weight waterproof fill.
After many months of experimentations, work and testing we have our heavy fill available.
We developed this just for our fill applications. It feels like a lightweight sand but doesn't absorb water, doesn't get stiff when it's cold outside and flows insanely well in bags.......it is also 100% water proof and FLOATS!
This is a combination of our lightweight fill and other components to bring the weight up.
A Sand Castle takes 3 liters to feel good but is not completely filled.
An F1 takes about 3.5 liters to feel good but is also, not completely filled.
We sell this 4 liters at a time only. This gives you extra regardless of which of our bags you fill.
Our heavy weight fill weighs in at 2.6 pounds per liter.
Price includes shipping.