Appropriate Bike Shorts
I am going to be attending a 70 mile ride on a Rail Trail. I have a '75 Raleigh Record that has been modified with more modern drive-train. I was told I need bike shorts because they are more tight fitting and thus improve circulation. I would like to get a pair of the baggy mountain bike shorts so I can have a place to put valuables (pockets), but was told they might not be the best for the longer rides. Thoughts? Any recommendations?