This is a free pattern from wool_soaker_group in Yahoo.groups, you must sign up for membership to access the group.

The first line reads “Here’s my pithy directions for a flat knit soaker:” Really this is a basic recipe for knitting a triangle, which is folded and sewn into a soaker. The method is easy enough for beginners to follow.

The document is called Flat Knit Soaker, located in the Files section.