Recs for lightest weight tote-style carrier?

Hi all,

My Mini Schnauzer is 20 lbs, and carrying him gets super heavy.

I've been using a boat bag from LL Bean but it has no bottom and the straps are narrow and cut in (although it is light.) I don't need one that's TSA approved–it's for taking the subway, etc.

Any recs? I like the looks of the ones below, but am flex–lightweight is the key thing.

I'd be willing to shell out for this one, but they can't tell me the weight. Has anyone tried it? https://www.lovethybeast.com/collections/carry/products/industrial-voyager-tote-black

https://wagwear.com/collections/carry/products/copy-of-copy-of-tri-color-boat-canvas-carrier-grey-navy-red this one in the right size is 2 lbs, the lightest I've found, but the straps are likewise narrow.

Thanks for your help.