“Killer Klowns” – Slim” Costume

$52.99

or 4 interest-free payments of $13.25 with Afterpay ⓘ

Shipping calculated at checkout.

Size

Medium

Large

XLarge

Worldwide shipping

Killer Klowns From Outer Space officially licensed costumes have arrived to make your Halloween outta this world! Our Adult Slim Costume includes a festive clown jumpsuit, separate clown collar, and character mask. Made of polyester. Spot clean with damp cloth, air dry. Do not bleach, do not dry clean. Shoes are sold separately.

[{"id":3805,"title":"Medium","option1":"Medium","option2":null,"option3":null,"sku":"FW101564M","requires_shipping":true,"taxable":false,"featured_image":{"id":3802,"product_id":3782,"alt":"\"Killer Klowns\" - Slim\" Costume","width":1500,"height":1500,"src":"https:\/\/maskhorror.com\/wp-content\/uploads\/2026\/10\/killer-klowns-slim-costume-34139465777200.jpg","variant_ids":[3805]},"featured_media":{"id":3802,"alt":"\"Killer Klowns\" - Slim\" Costume","preview_image":{"src":"https:\/\/maskhorror.com\/wp-content\/uploads\/2026\/10\/killer-klowns-slim-costume-34139465777200.jpg"}},"available":true,"name":"\"Killer Klowns\" - Slim\" Costume - Medium","public_title":"Medium","options":["Medium"],"price":5299,"weight":0,"compare_at_price":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":3806,"title":"Large","option1":"Large","option2":null,"option3":null,"sku":"FW101564L","requires_shipping":true,"taxable":false,"featured_image":{"id":3802,"product_id":3782,"alt":"\"Killer Klowns\" - Slim\" Costume","width":1500,"height":1500,"src":"https:\/\/maskhorror.com\/wp-content\/uploads\/2026\/10\/killer-klowns-slim-costume-34139465777200.jpg","variant_ids":[3806]},"featured_media":{"id":3802,"alt":"\"Killer Klowns\" - Slim\" Costume","preview_image":{"src":"https:\/\/maskhorror.com\/wp-content\/uploads\/2026\/10\/killer-klowns-slim-costume-34139465777200.jpg"}},"available":true,"name":"\"Killer Klowns\" - Slim\" Costume - Large","public_title":"Large","options":["Large"],"price":5299,"weight":0,"compare_at_price":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":3808,"title":"XLarge","option1":"XLarge","option2":null,"option3":null,"sku":"FW101564XL","requires_shipping":true,"taxable":false,"featured_image":{"id":3802,"product_id":3782,"alt":"\"Killer Klowns\" - Slim\" Costume","width":1500,"height":1500,"src":"https:\/\/maskhorror.com\/wp-content\/uploads\/2026\/10\/killer-klowns-slim-costume-34139465777200.jpg","variant_ids":[3808]},"featured_media":{"id":3802,"alt":"\"Killer Klowns\" - Slim\" Costume","preview_image":{"src":"https:\/\/maskhorror.com\/wp-content\/uploads\/2026\/10\/killer-klowns-slim-costume-34139465777200.jpg"}},"available":true,"name":"\"Killer Klowns\" - Slim\" Costume - XLarge","public_title":"XLarge","options":["XLarge"],"price":5299,"weight":0,"compare_at_price":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

Frequently Bought Together

"Bat Skeleton" Halloween Prop - 36 Inch

$59.99

Meat Market Brain Halloween Decoration

$12.99

"Zombie Skeleton Hands" Halloween Costume Gloves

$59.99

"Area 51 Alien" HD Studios Pro Collector Halloween Mask

$97.99

Halloween Masks Collection at Mask Horror

Mask Horror Studios Masks

Your horror experts at Mask Horror are proud to present you with a collection of high-quality Halloween masks to bring a new level of fright to your life. With our collection of ghosts, ghouls, aliens, cryptids, and more, you’ll be able to steal the show during your next masquerade ball, Halloween gathering or when you Trick or Treat.

All our Halloween masks for adults are fashioned from the highest quality latex by our terror inspired craftsmen to give the most realistic horror experience to everyone you encounter during your masked escapades. Each of our scary Halloween mask lines brings its own special flair to the design, from our movie-quality HD Studio Masks to our Ultra-Realistic Silicone Halloween Masks that turn your every movement into a fresh dose of horror to your costume.

If you’re looking for the perfect face for your next haunted costumed horror event, Mask Horror has scary Halloween masks that are sure to steal the show.

Testimonials

★★★★★
We're filmmakers and love Mask Horror...
Their costumes and masks are top notch - NOT AT ALL what you'll find at Walmart and other retailers. But surprisingly, the prices aren't bad, even for the highest end merchandise. Good customer support too. Thanks! -- Pete Jacelone aka "Dr. Lawrence" at THR Productions LLC and Lawrence Psychiatric Institute Productions.
Dr. Lawrence
Psychiatric Institute Productions.

★★★★★
I found Mask Horror on a quick search for a certain type of mask. After looking through all the available masks I settled on three designs that I liked best and placed my order. These masks are extremely well made and the prices are tough to beat on this type of quality. I opted for 2 day shipping to ensure that I would receive them before Halloween. They arrived a day earlier than expected!! Holy smokes!! I will definitely be buying more and recommending Mask Horror to others. Thank you Mask Horror for making the best holiday of the year so awesome!
Daniel
San Antonio TX

★★★★★
I’m a big fan of Mask Horror’s product! I own many of the HD masks and I can honestly say I’m thrilled with the quality and craftsmanship of each piece in my collection! I appreciate that there’s no bait and switch with Mask Horror products.
Eric
Los Angeles, CA

★★★★★
Hands down one of the best experiences I've had with a costume store. My daughter prepared this amazing Halloween costume party and Mask Horror made it truly come to life with their prompt delivery service (In time for Halloween) and the quality of their costumes. Thanks to Mask Horror this is the service that make these events so memorable. I highly recommend Mask Horror for your costume needs.
Duncan
Houston TX

★★★★★
I ordered a big foot costume from mask horror and was very pleased. Very speedy customer service and high quality, durable product. Will be ordering future Halloween costumes and decorations from here!
Kat
New York, NY

★★★★★
Hi guys. I just want to say thank you for being so patient with me on the phone last week. I know this is most likely your busy season but you guys definitely came through on the costumes I needed for today. Everything is perfect. Thank you Mask Horror and your staff.
Janet
Whitby ON

★★★★★
Fantastic customer service! They know how to personalize your order and are really great at making you feel like a very private client. Five stars.
Reed
Brooklyn, NY

★★★★
Great Products, they are a little more expensive then some of the other companies but I guess you get wat you pay for. I ordered 5 masks from MaskHorror.com and the quality was much better than what I received from other Halloween companies. I think I will be ordering the Infected Zombie costume soon and then I will write another review on what I receive. If you are looking for professional quality masks I think they might be the best.
Joe
St. Louis, IL

★★★★★
Great quality masks that are unique, unusual and original. Prices comparable to other retailers.
Jennifer
Miami, FL

THERE’S STILL PLENTY OF TIME TO GET YOUR ORDER BEFORE HALLOWEEN!

"Killer Klowns" - Slim" Costume

Mask Horror Studios Masks

Testimonials