For shorter tours and weekend trips, I take a pair of under armour heat gear running shorts. They weigh almost nothing, pack up small, and have a lining. I throw them on off the bike for restaurants and general off bike wandering. They also double as my swim trunks. I am still new to touring though and figuring it all out, and I may think differently when I really start evaluating gear lists for a longer tour. However, since these weigh less and pack up small than any other piece of clothing, I will keep taking them - especially on summer trips.