I'm all about
the coloplast sensura 2piece. It is almost bombproof. Heavy exercise, lots of sweating. It just holds up. Plus the midi size bags are just perfect for a petite person with an ileostomy. No one else seems to make midi size bags.
Hollister always blows out when I wait to long to empty. Convatec anything eats my skin apart. So with the sensura 2 piece.. you can see it easy to apply it, the lovely clicking sound is so reassuring, and it surely doesn't snap off on its own, or the bottom of the bag leak out - like the hollisters.
For extra security I either use sureseals or coloplast brava elastic semicirle strip things on the outer edges. Then I can do ANYTHING I did pre-ileostomy.