Buy it at AndolsekArt on Etsy!
This loose little painting was rendered Plein Air on the beach. The plein air equipment was schlepped along on a cart that becomes a table. The tires on this make it so much easier to get across the sand. Took me sometime finding this perfect transport for hauling all the gear, food, drink, umbrella, chair, etc, but was well worth the effort. The little back-pack holds a very small Open Box M pochade with brushes, paints etc. Easy to back-pack with walking or on a bicycle which I have done many times with this little one as well. Also bought some really great zippered pouches from REI. Love them!
I have another regular sized set-up that's larger. James Coulter's system "Art Box and Panel". Here's a link to the very first plein air painting I did with this set-up, "Side by Side". It seems I bought mine around the same time or right after Carol Marine and Jennifer McChristian did unbeknownst to me. You can see them using it on the links James has set-up on his site. That proved to be a confirmation that I did my homework and selected great equipment. I personally think James put a lot of thought into this as it's pretty darn easy to set-up.
I prefer standing when painting outdoors, but having the ability to hang out as long as I wanted sitting without having to leave for any reason other than nature - well what can I say, it was a very very good day!