The Kangaroo is a cotton-canvass-cloth under-the-arm belly-band Hybrid.
http://www.deepconceal.com/" onclick="window.open(this.href);return false;
http://www.centralpolice.com/Kangaroo_C ... ngaroo.htm
The canvass cloth is nice in the summer, and I can wear light-weight hawaiian type shirts. Don't have to worry about "tuckable" or "non-tuckable" since this doesn't reside on my hip.
Since you have chosen a CZ-P01 as your other weapon, consider the CZ RAMI-P (Polymer) 9mm. It is a bit smaller than the P01.
I can wear this thing all year around and never get uncomfortable, and don't have to deal with getting poke in the ribs or hip every time I sit down.