End members are dimensioned for securement to a flexible wall of a gas spring assembly. The end members can include an end wall, and inner and outer crimp walls that extend from the end wall and are disposed in spaced relation to one another such that gap is formed therebetween. A plurality of connector walls extend between and operatively interconnect the inner and outer crimp walls. Gas spring assemblies including such an end member and suspension systems including one or more of such gas spring assemblies are also included.