Gym bag with a structured base?

[cransplash]

DH is looking for a gym bag/duffle that has more of a rigid/structured bottom to it. He's looking for a bag around 18" wide, 10" height, and 10" deep.

I've been checking ebags, but it's so hard to find bags with a "rigid" bottom without having to look at each bag's details. I just ordered an LL Bean medium duffle, but I don't think mind has a structured bottom.

Does anyone have one similar to what DH is looking for?