RE: new runner - how long should it take me to run 5k? (1) For a new runner, I think a good goal would be to average under 7 minutes per mile for a 5k. 6:59 pace x 3.1 miles = 21:39. (2) After that I'd imagine 20:00 is a nice barrier. To run 19:59 you'd need to average 6:26's. (3) 18:59 - now you're starting to get a little more serious.
OP, usually when you see the term 'fitted shirts' or 'shirts in fitted sizes', that means neck and sleeve measurements describe the shirt's size. Note that users of MFA may use the term differently..... Also note that even if you buy a shirt in fitted sizes, you still probably will have to have it tailored!
The shirt was an item of clothing that only men could wear as underwear, until the twentieth century. Although the woman's chemise was a closely related garment to the man's, it is the man's garment that became the modern shirt.