I have had no issues with the neck seal with my black ice , until my twelve dive in it . Out of the blue the neck starting leaking like a sieve . If I moved my head air leaked and water poured in . It was the wettest drysuit dive I have had out of 850 + drysuit dives .
I got my buddy to inspect the seal when we got out , thought for sure I had a big crease in the fold that was causing the issue . It was rolled flat and clean .
When I took the suit off I inspected the neck seal , it has stretched outward from going over my head a few times .
Most neck seals are tapered inward , these are straight , when they stretch they turn into a funnel for air to leak and water to pour in .
I am taking mine in before I dive in it again to have it adjusted correctly or replaced . Again , I have never seen a drysuit neck seal not tapered in , obviously a design flaw . The thin neoprene they use at that angle is a leak waiting to happen . Probably just one of the issues that burned out their relationship with Zeagle .