Sans Undertale Cosplay

sans undertale costumeUndertale is an RPG video game created by indie developer Toby Fox released in late 2015 which quickly grew a dedicated cult following.

You play a human moving through a fictional underground world interacting with magical monsters and creatures and changing the course of the game as you do so.

Sans is one such creature you encounter who is a big boned skeleton with a large ever present grin on his face. Today we’ll be looking at how to create a Sans Undertale cosplay, right in time for cosplay conventions aswell as Halloween including everything you’ll need to transform into the character such as jacket, sweater, mask and makeup ideas. 

Sans Undertale Jacket


Unko Men's Casual Faux Fur Hoodies Outwear Sweatshirt L BlueUnko Men’s Casual Faux Fur Hoodies Outwear Sweatshirt L BlueHanes Men's Full Zip EcoSmart Fleece Hoodie, Navy, MediumHanes Men’s Full Zip EcoSmart Fleece Hoodie, Navy, Medium


The first item you’ll need to begin transforming into this character is a regular blue fleece hoodie or jacket. If you already own something similar you could easily use it for this costume, if not check out the link above or your local thrift store where you can pick it up for a few dollars. For the most realistic option go for Unko’s navy blue fleece with faux fur lining which is very similar to the style Sans wears.

Underneath the jacket Sans wears a white sweater (great to keep warm during Halloween too/chilly months). Again you can check out your local thrift store to pick this up for a few dollars but I assume you already own something suitable in your existing closet.

Sans Undertale Mask


Forum Novelties Men's Skeleton Man Bone Skin Suit Adult Costume, Multicolor, StandardForum Novelties Men’s Skeleton Man Bone Skin Suit Adult Costume, Multicolor, StandardSecondSkin Full Body Spandex/Lycra Suit (Kids L, Skeleton)SecondSkin Full Body Spandex/Lycra Suit (Kids L, Skeleton)


We already know Sans is a skeleton so you’ll literally have to transform yourself into one in order to pull off this look. There are two main options you can choose between. First wearing a mask and suit like above (sizes available for both adults and children) or putting on face paint makeup as we’ll cover below.

Sans Undertale Makeup

  • This is the most indepth guide I could find on how to accomplish this makeup look. You’ll want to start with a bald cap (going over your ears too as skeletons don’t have ears) laying on several layers of liquid latex to keep it in place. Blending white creme paint all over your face as a base.
  • Start with a black water color taking an angle brush and create two half circles to emphasize your cheeks then join them onto a cheesy cartoonish grin going downwards. Now go in with some shading. Next we’re creating the eye holes using black matte paint.
  • Finish off by painting the back half of your face black to create a shadowing effect and add the details such as nose and temple area. You could also wear contact lenses similar to the ones shown in the video or use dark blue ones as San has in the game. As you’re using makeup for your face all you’ll need to add is your skeleton gloves and you’re ready to go!

Sans Undertale Costume


Augusta Striped Dazzle Short (Black_White) (2X)Augusta Striped Dazzle Short (Black_White) (2X)Converse Unisex Chuck Taylor All Star Ox Sneakers Navy M9697Converse Unisex Chuck Taylor All Star Ox Sneakers Navy M9697


There are just a few more items you’ll need to finish off this costume now we have skeleton makeup and hoodie in place. Sans wears pretty simple attire consisting of black shorts with a white stripe going down the side along with blue and white sneakers.

There you have it a completed Sans cosplay for adults and children, we’ll be adding more Undertale tutorials in due course so be sure to keep an eye out. Until then check out our social media pages to get more guides each week.

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