[Closed] Core chest protection for normal riding which one would you recommend?

First ride out offroad on Saturday and felt very nervous and walked some bits that I would normally ride. This was mainly due to the fact I had my chest cracked open for an op 5 weeks ago and its stapled back together, so looking for some reassuring core chest protection. Do not want anything to bulky as other tops need to fit over and do not want a boil in the bag equipment either so is there anything out there you would recommend for an xc wuss like me.

Rich