Measure and cut tan felt 4-inches high and wide enough to wrap around your bottle with 1-inch of overlap.
Fold the tan felt rectangle in half and cut off the top corner along the fold. This will create a triangle in the center of the felt for the V-neck shirt.
Measure and cut a 5-inch high piece of brown felt roughly the same length as your tan felt. Fold the brown felt and line up the folded edge with the side of the tan felt. The folded brown felt should be wide enough to reach the beginning edge of the v-neck.
Measure and cut a ½-inch by 5-inch strip of dark brown felt and glue to the tan felt below the v-neck. Glue the tan felt around the water bottle.
Position the bottle, v-neck facing up, in the center of the brown felt. Wrap around both sides and glue in place. And there you have it, Water Bottle Covers.