Instinct X8 18L sizing check for a 125cm (49") chest?

Hey everyone!

I’m 172 cm (5'8") with a 125 cm (49") chest/torso. Looking at the Instinct X8 (18L) for longer autumn/winter walk-run sessions. Do the side adjustments open up enough for a chest this size, or will it feel too tight on the ribs?

Thanks to everyone!