The chocolate fish leggings have a slit (hidden) in the fabric in the appropiate place! Mean theres no annoying buttons in the way, and they look like normal base layers
CF replied to an email last night (within 90 minutes of my query; very good service); the Taranaki 190 unisex plain leggings don't have a fly. The women's 'Freedom' leggings do. Shame, as I might have been tempted if they did have.
There's some very small print (lterally: must be 3 or 4 pt) on the CF website...
Sounds like you could do with setting your text size bigger. I don't know about other browsers but in IE you can alter it by going into the View menu on your tool bar. I've just had a look at the page and it looks ok to me - but I have the text size set to medium using IE. Dont know what youd need to set it to for a different browser.