• Demon Sword Lostvayne
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Demon Sword Lostvayne - Seven Deadly Sins (High-Density Foam)

Demon Sword Lostvayne - Seven Deadly Sins (High-Density Foam)

$49.99 USD
$49.99 USD
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Bring the dark allure of the Seven Deadly Sins to your cosplay or collection with this foam replica of the Demon Sword Lostvayne. Designed for fans who want an eye-catching, convention-friendly prop inspired by the series, it balances a screen-inspired silhouette with lightweight construction for comfortable carrying during photoshoots and events. Ideal for cosplayers, collectors, and display, this replica offers the look of the legendary blade without the hazards of a metal weapon.

Lostvayne is presented in the Seven Deadly Sins universe as a demon sword with a strong visual identity that reflects the series' darker themes. The name and design evoke a weapon tied to intense conflict and mystery, making it a memorable piece among the story's many armaments.
As a symbol within the series, the sword is associated with major events and characters without needing to reveal plot details. Fans prize the blade for its dramatic appearance and the way it represents the darker elements of the story, making replicas like this one popular for display and cosplay alike.

  • Overall length: 29"
  • Material: Foam
  • Intended use: cosplay, display, and collecting
  • Care: clean with a damp cloth and mild soap if needed; avoid prolonged sun and heat exposure
  • Note: decorative replica prop not designed as a functional weapon
  • Lightweight foam construction makes it comfortable to carry during conventions and photoshoots
  • Screen-inspired styling captures the sword's dramatic visual presence from the series
  • Safe and convention-friendly alternative to metal props for cosplay use
  • Easy to pose with for photography and staging without risk of sharp edges
  • Well suited for shelf display or themed collections
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Frequently bought together

Total price

High-Density Foam
Foam replica weapons
3 to 7 Business Days
Estimated USA delivery
Tracking Provided
On every order
Fan-Made for Fans
Anime & game replicas
Safe for Every Fan

Safe for Every Fan

Our foam replicas are built for fans who want to display, cosplay, or collect without compromise. Lightweight, durable, and screen-accurate; perfect for any setting.

Convention & Event Ready

Convention & Event Ready

Designed to pass event safety checks, our foam weapons are ideal for cosplay meetups, conventions, and photoshoots. Look the part without leaving your blade at the door.

Screen-Accurate Detail

Screen-Accurate Detail

Every foam replica is modeled from the source material: anime, games, and film. We capture the color, shape, and character of each weapon so your cosplay is always on point.

Frequently asked questions

Is this an officially licensed product?

No, this item is an unlicensed replica inspired by the weapon from the Seven Deadly Sins series. It is designed for fans who want the look and feel of the sword without implying official endorsement.

What material is the Lostvayne replica made from?

This replica is made from foam to keep it lightweight and safe for handling. The foam construction makes it easy to carry and pose with at events and photo shoots.

Is this sword safe to bring to conventions and cosplay events?

The foam construction makes this prop safer than metal alternatives and more likely to be allowed at many events. Always check the specific prop and safety rules of the event or venue before bringing any replica.

Can I use this prop for LARP or staged combat?

Foam replicas are sometimes suitable for light, choreographed staging, but they are not intended for heavy impact or continuous combat. Confirm safety standards and rules with your LARP group or event organizers before use.

Does the replica require assembly?

Most foam replicas arrive ready to use and require no assembly. If any assembly is necessary it will be noted on the individual product page or included with the item.

How should I clean and maintain the foam surface?

Clean gently with a damp cloth and mild soap if needed, and avoid harsh solvents or abrasive cleaners. Store the prop away from direct sunlight and heat to prevent warping or color fading.

Can I repaint or customize this foam replica?

Yes, you can customize foam props with foam-safe paints and coatings, but test any paint on a small inconspicuous area first. Use lightweight additions and avoid heavy adhesives that could deform the foam.

Is this replica suitable for outdoor display?

This foam prop is best kept indoors or in a sheltered display to avoid prolonged exposure to moisture and UV light. Extended outdoor placement can lead to fading, warping, or material degradation.

Does the product include a stand, sheath, or display mount?

The product does not include a stand, sheath, or display mount unless specifically listed on the product page. Many collectors use custom stands or wall mounts sold separately for display.

Is this prop appropriate for children to handle?

While the foam construction reduces injury risk compared to rigid materials, this item is a collectible replica and not a toy. Supervise younger users and consider age recommendations from event organizers or guardians before allowing children to handle the prop.

Demon Sword Lostvayne - Seven Deadly Sins (High-Density Foam) $49.99