Denji Reze Arc Costume Guide — Chainsaw Man Cosplay

The Chainsaw Man: Reze Arc movie has reignited excitement among anime fans and cosplayers across the world. With Denji returning as the chaotic yet lovable protagonist, his updated costume in this arc has become one of the most requested cosplay looks of 2025.

This Denji Reze Arc costume guide will help you recreate his movie-accurate outfit — from his signature red cropped jacket and chainsaw arms to his distressed shorts and grimy streetwear vibe. Whether you’re attending a comic convention, Halloween party, or cosplay photoshoot, this step-by-step guide will help you achieve the perfect Denji look.

The Evolution of Denji’s Design in the Reze Arc

In Chainsaw Man: The Movie – Reze Arc, Denji’s character design matures visually. MAPPA Studios introduced subtle changes — darker tones, realistic fabric textures, and more battle-worn details — giving his outfit a grounded, cinematic feel.

Unlike the clean, simplistic look of the anime’s first season, the Denji Reze Arc costume captures the grittiness of the world he inhabits. His red jacket is slightly tattered, his shorts show signs of wear, and his iconic chainsaw arms appear heavier, industrial, and more metallic. This makes the Reze Arc version ideal for cosplayers who love attention to detail.

Denji Reze Arc Costume Breakdown

1. The Red Cropped Jacket

This is Denji’s defining upper piece in the Reze Arc. It features a short cut, frayed edges, and slightly faded red fabric. You can source it from a thrift store and distress it using sandpaper or diluted bleach for authenticity.

Pro Tip: Use a matte, muted red instead of bright crimson — it looks closer to the cinematic design.

2. Undershirt and Shorts

Under the jacket, Denji wears a plain, fitted white T-shirt. His blue denim shorts are rugged, rolled up just above the knee, and appear oil-stained or dirt-washed. A brown or black utility belt completes the midsection of the outfit.

3. Combat Footwear

Denji’s footwear choice blends practicality and power. Go for black combat boots or dark grey reinforced sneakers. Make sure they’re comfortable, as convention wear requires long hours on your feet.

4. The Chainsaw Arms (Prop Focus)

This is where your build truly stands out. The Denji Reze Arc costume includes two chainsaw props extending from his forearms — brutal but stylish. For safety and realism:

• Use EVA foam for blades and housing.

• Reinforce the inner structure with PVC pipes or wooden dowels.

• Paint with metallic silver and grime washes for a weathered steel effect.

• Add foam padding where it touches your forearms to ensure comfort during long cosplay hours.

Safety Reminder: Always ensure the prop is blunt, lightweight, and convention-approved.