Does this mount to the bed rails or do I need bed clamps?

It mounts directly to factory bed rails—no aftermarket clamps or brackets needed. Hand-tighten the bolts and you're done.

Can I leave it partially open in rain or does it have to be fully closed?

The gasket seals when fully closed. If you roll it up halfway, water can get in around the edges—either close it all the way or open it fully for hauling.

What's the return process if it doesn't fit or I change my mind?

Test-fit it immediately when it arrives. If there's a problem with fitment or damage, reach out within 30 days and we'll sort it. Just keep the parts clean and in resellable condition.