I had a leak just above my knee on my breathable waders that i wanted to fix.So i did my usual fill the bath & pump a bit of air into the leg.But after this i still couldn't find the leak.So i tried the torch in the dark thing shinning it through your waders.I must say i am impressed as it shows up everything i have found holes i didn't know i had.Just a heads up guys get your torches out. :D