I've been looking at these around town, and some have a mesh pocket on the inside lid, and some don't. Some have a detachable add-a-bag strap, and some don't. What about the ones being sold here?

Tech Specs:

Material:

600D Polyester 

Volume:

1900cu in (31L) 

Dimensions:

19x 13 x 9in (48 x 33 x 22cm) 

Pockets:

2 Front 

Padded:

No 

Wheel Type:

Inline-skate 

Weight:

6lb 11oz (3000g) 

Recommended Use:

Travel 

Manufacturer Warranty:

Lifetime 

Country of Origin:

China