Does this mount directly to my factory bed rails?

Yes. The cover uses your factory tie-down and anchor points along the bed sides — no drilling or welding required. You'll need basic hand tools for a clean install.

Can I still use my bed with the tonneau folded back?

Completely. That's the whole point of a tri-fold design — fold all three panels forward against the cab and you've got a clear, full-length bed for hauling whatever you need.

Will this cover keep my bed dry in heavy rain?

The soft material sheds water, but a tonneau cover is not 100% weatherproof at the seams. For total weather protection, pair it with bed rail seals or consider a hard tonneau. This one keeps light rain and dust out.