Leinster are yet to release their domestic jersey for the coming season. It would appear that the wait was not worth it. Sarah Lennon tweeted that this may be the new top.
http://ballsdot.wpengine.netdna-cdn.com/wp-content/uploads/2013/07/leinster-jersey.jpg
At least they won't be wearing it in Europe.
H/t @sarahlennon08