When Emu renamed their low-end product to Ukala, I didn't pay much attention; however, they had also changed the sole by removing out outer, slip-resistant, wear-resistant rubber sole layer.  I guess this was a cost savings measure.  After 6 months or so, the old style outer sole would sometimes begin to detach from the inner sole, but this was easy to glue back in place with a product like Shoe Goo.  But the new sole is actually hazardous.  The new sole is entirely made out of the stiff, papery inner-sole rubber that wears heavily in just 1 - 2 months of normal use, and you WILL FALL on wet concrete.  This papery sole material will suddenly loose traction on wet concrete with no warning, even if you walk *very* carefully.  I have had many Emu boots over the last several years as the soles of my feet need the padding.  I fell several times this last winter with Ukala boots, but never with my *old* low-end Emu's or with my higher-end Emu's.  This is all about the cheaper sole that they're using now.  No more Ulakas for me!!