This is a vintage heavy Jacquard knit wool sweater from Abercrombie & Fitch.  Judging from the tag it's probably circa late 70s to early 80s. It's got a Fair Isle pattern which generally incorporates the Jacquard knit. The tag says it's a men's XL, but it's JUST an XL. The measurements suggest that it actually could be a bigger Large, so lets call it a L to XL fit:
                                                                          pit to pit- 24''
                                                                          sleeves- 24''
                                                                          length in back- 27''
VERY IMPORTANT-  The type of knitting with this sweater leaves strands of yarn looping all over on the inside. You should take particular care when putting it on, especially when pushing your hands through the sleeves. This really is an awesome sweater, a cool vintage collector's item.     ~    Click on the ''visit store'' for more stuff...