These are comfortable socks with just the right amount of elastic. I'm 6'0", 220 lbs Shoe size 9.5-10.5 (depending on maker) and they go up to just below my knee (good coverage, but higher than the described "mid calf"). They seem to breathe well. The only issue I have with them is that they are reasonably thin so they will not work well in northern winters (I live in Boston). In more southerly climes I would give these a better recommendation as daily dress sock, but here in the Northeast, they are best reserved for summer.As other reviewers have noted, in addition to the logo on the bottom, there is the slogan "Do it now" woven into the top of the foot. Personally, I find it amusing every time I go to put my shoes on in the morning, but some may find it off-putting (I always think it's reminding me to go make coffee --yeah. sure. like I need a reminder ;)Pros:- comfortable- stay up well (for me)- "dressy", ie, suitable for office/business wearCons:- too light for Northeastern winters- so light that those skip-on shoes that fit with your heavy socks may no longer fit- DO IT NOW ! (emphasis added)