Is the ShellTA waterproof?

The ShellTA is manufactured from waterproof and breathable fabric and the major centre seams and hood are taped. The side zips are protected by overlapping flaps but are not taped.

When using the ShellTA as a bivibag I recommend that you use a sleeping mat to provide extra protection from saturated ground. The side zips should be positioned low, to the side, so that water runs off them.