What You’ll Need
Stitched Butcher Halloween Mask
Red Heart-Shaped Sunglasses
Black Casual Canvas Military Jacket
Black Turtleneck Shirt
Black Leather Pants
Black Work Boots
Black Leather Motorcycle Gloves with Straps
Realistic Machete Knife Plastic Prop
Building the Heart Eyes Killer from the Ground Up
The whole costume hinges on the contrast between the all-black tactical base and that bright red heart-shaped eyewear. Start with the layers closest to your skin. A black turtleneck is the right call, not just for the look but because it eliminates any visible skin tone around the neckline, which would break the illusion of the mask. A cotton-blend knit is fine; you are not doing anything strenuous, but you will be wearing it for hours, so avoid anything stiff or high-collared that might irritate your jawline.
Over that, the jacket carries the silhouette. You want something with structure—a canvas military-style jacket with shoulder epaulets and flap pockets gives the upper body a boxy, heavy shape that reads well in photos. The matte fabric of the jacket against the slight sheen of faux leather pants is what keeps the outfit from looking like a generic “all black” costume. Keep the jacket open or only partially zipped so the turtleneck creates a solid dark column up to the mask.
For the lower half, slim black faux leather pants work better than cotton trousers because the surface texture catches light and separates the legs from the jacket. If you already own black jeans, they will pass, but the leather-look material adds a deliberate, polished edge. Tuck the pants into or over sturdy black work boots with a thick sole. The boots are the least interesting part of the costume; any heavy black lace-up boot will do, but test them around the house first because you will be standing on convention floors for hours.
The mask is where the character actually lives. You need a stitched butcher mask—the kind with a molded latex or rubber face, visible stitching across the cheeks or forehead, and an aged, textured skin finish. These are widely available at Halloween retailers and online. The mask should fit snugly but not compress your face; if it shifts when you turn your head, the sunglasses will slide with it. Secure the red heart sunglasses directly onto the mask with hot glue or strong double-sided adhesive at the temples. Do not rely on wearing the sunglasses over the mask—they will slip off constantly.
Before you glue anything, test the mask with the glasses on and check your breathing. Many of these masks have limited nostril openings. Cut two small ventilation slits near the nostrils with a utility knife, and if the mask has a closed mouth, add a slit there too. This prevents fogging on the sunglasses and keeps you from overheating. The glasses themselves should be bright candy-red heart shapes with dark lenses—the brighter the red, the better the contrast against the pale mask.
Black leather motorcycle gloves with wrist straps and padded knuckles complete the hands. They should fit snugly so you can grip the machete prop without fumbling. The prop itself—a plastic machete with a weathered silver blade and black handle—is the only piece you need to check against venue rules. Many conventions allow plastic weapons but require them to be peace-bonded or inspected at the door. Bring a zip tie or ask security how they want it handled before you walk in.
If you want the costume to look less like fresh retail clothing, a few streaks of dark gray or black fabric paint along the jacket seams and pocket edges will add a worn, gritty texture. Keep this subtle; the Heart Eyes Killer is clean and deliberate, not a grungy survivor. The unsettling quality comes from the stillness of the mask and the bright glasses, not from distressed fabric.
Once the outfit is assembled, the performance is mostly about restraint. Walk slowly, keep your shoulders back, and avoid sudden or exaggerated movements. The mask does the emotional work; your job is to stay still and let people notice the details. Holding the machete low at your side or angled across your chest in photos gives a menacing but controlled pose. That is all the direction you need—the costume itself carries the rest.
