Most men buying an ugly sweater want two things that pull against each other. Funny enough that people react, specific enough that it says something about them rather than just being a generic reindeer.
The way to get both is to start from a hobby instead of from the holiday.
Start with what you actually do
A sweater about your thing is funnier than a sweater about Christmas, because everyone at the party already knows the thing.
Lifting: Gymerbread, a gingerbread man deadlifting a barbell, or the bodybuilder Santa. The joke works on people who train and reads fine to everyone else.
Riding: No Sleigh Just BMX Santa.
Music: Christmas Rock Santa.
Whiskey: Cool Santa whiskey pattern.
Western: Western cowboy Santa.
These are the sweaters that get worn again, because the joke does not expire on December 26.
The tired Santa category, and a warning about it
If no hobby fits, tired Santa is the reliable default for men: a guy who has had enough of December. Everyone over thirty finds it funny.
The warning is that this category hides the rudest designs behind mild names. Santa's Off Duty is Santa in sunglasses with a cigar, giving the middle finger with both hands. Funny Santa Belly is the illusion kind, an exposed hairy stomach under an open suit. Both are genuinely funny and neither is office wear.
Funny Santa Gotta Go sits in the same family. Look at the product image before you buy any Santa design, because the titles undersell them.
Animals, which men underrate
There is a habit of skipping the animal sweaters as too soft. They are consistently the ones that get the biggest reaction.
A feral and festive raccoon, overstimulated opossums, or Bigfoot all land harder than a generic snowflake pattern, and they work in any room.
The rude tier, and when to use it
The torn Santa suit and the hairy chest Santa suit are the illusion kind: from ten feet away it looks like you are wearing something you are not.
Jingle My Bells and Merry Dickmas are exactly what they sound like.
All four are genuinely funny in a room of friends. None of them belong at a work party, a family party with kids, or anywhere your partner has to see the same people again in January. The most common regret with ugly sweaters is buying for the party you imagined instead of the one on the invitation.
Fit, since the cut is unisex
There is one cut, sized S through 5XL, rather than separate men's and women's patterns.
Most men prefer to size up one for room through the shoulders and chest. If you like a closer fit, take your normal size. Between sizes, go larger: a printed sweater that is pulled tight distorts the design across the chest.
These are printed polyester sweatshirts in the ugly sweater shape, not knitwear, which is why the designs can be photographic rather than pixelated.
What to wear it with
Black jeans or dark denim, plain shoes, nothing else patterned. The sweater is the outfit. Adding a second loud thing is how a good sweater stops reading from across a room.
More on that in ugly Christmas sweater outfit ideas.
Buying one as a gift
Sizing someone else is the risk. When in doubt, size up, and stay away from personalized designs, which cannot be returned.
If you are buying for a group, order one per person and pick each size from its own dropdown. Everything is $33.99 flat, so the maths is easy.
Three mistakes that come up every year
Buying for the wrong room. This is the big one and it accounts for most regret. Read the invitation, not your imagination of the party.
Buying too small. Men consistently order their t-shirt size, which is a size down from what works in a printed sweatshirt. The print stretches across the chest and the design warps. Size up.
Leaving it until December. Everything is printed after the order, so a late order is not a matter of stock, it is a matter of production queue in the busiest month of the year. There is no expedite that fixes an order placed on the 20th.
Two or more of you going together
If a few of you are going to the same party, picking sweaters that share a theme reads better than everyone buying independently.
Three tired Santas, or three animals, or three hobby sweaters. The connection is obvious in a photo and nobody is stuck holding half a joke, which is the failure mode of the two-halves-of-one-picture designs.
Order them together. Everything is $33.99 flat and three or more matching items take 10% off automatically at checkout, so a group of three is already past that line.
Ordering and timing
Nothing is stocked. Each sweater is printed after you order, which is why your size never sells out in December, and also why you cannot order on the 20th and expect it for the 23rd.
Check the current production and shipping times and work backwards from the party date.
Common questions
What is the largest size? 5XL, on every design.
Are they warm? They are polyester sweatshirts, warm enough for indoors and a walk to the car. Not a substitute for a coat.
Can I get my name on one? Some designs support personalization; others are marked "no personalization" in the title. Check the product page.
Which one wins a contest? Usually the most specific joke in the room rather than the loudest design. A hobby sweater that half the guests recognise beats a generic rude one.
Browse everything in ugly Christmas sweaters, or see funny ugly sweater ideas for the full tier breakdown.