straight edge hardcore punk band from Seattle, Washington, active during the early and mid-1990s. They released material on Indecision Records, Bloodlink Records, Excursion Records and Overkill Records. Indecision Records released a comprehensive discography entitled Everything, which has 28 tracks spanning Undertow's entire active period with John Pettibone on vocals. RevHQ described them as 'founding fathers of Seattle straight edge'.