This is a simpler version of the pump bag. When pumping the packraft, make sure that the sleeve is not twisted, as this makes pumping difficult. When attaching the bag to the valve, do not make knots in the string, just tighten the string. This version of the bag allows you to pump the packraft faster than the bag with a valve, but it requires more practice so that the sleeve does not twist during pumping.
Weight – 0,16 kg