I loved wearing Capris last year - so comfy! The days I wore skirts I noticed a huge difference, my legs were clammy and sweaty. Ugh! The Capris help prevent chafing (sp?) too as you have the fabric to prevent the skin rubbing together.
I wore them with leather sandals (I brought a couple of pairs, both pairs were worn in) and I walked for miles each day. The sandals I chose had backs on them but open toes (well obviously I guess or they wouldn't be sandals, lol) but not flip flop type. I'd be hard-pressed to find more comfortable footwear that those.