Folding Box | N-Shiki Roll-End Mailer | Newlifepack

📦 Product Information

N-shiki Box – Minimalist Design, Japanese Craft Philosophy

What is N-shiki?

N-shiki (N式箱 / N-type Mailer Box) is a premium roll-end box—also commonly referred to as a double-wall box—widely used in Japan. The box features a one-piece construction combined with a self-locking mechanism and a hinged lid. This design allows for fast and intuitive assembly without the use of adhesive, while still delivering high structural stability and excellent load-bearing performance. Overall, the N-shiki box presents a cohesive, refined, and well-disciplined appearance, aligning with Japanese standards of precision and presentation quality.

In practice, the N-shiki box is considered a standard mailer format in Japanese commercial packaging, commonly applied to gift boxes, dry food packaging, and consumer goods that require both secure delivery and refined aesthetics.

Key Technical Advantages

• The side-oriented locking tabs are designed to remain fully hidden from the front view, resulting in a clean and uninterrupted façade. This characteristic of the roll-end box structure also maximizes the usable front panel area, enabling large-scale graphics or restrained minimalist layouts.
• Integrated dust flaps connected directly to the main body enhance protection against dust while contributing to a calm, controlled opening experience—an essential quality in premium roll-end packaging.
• A reinforced locking point acts as a mechanical anchor, significantly improving the box’s ability to maintain form during transportation and stacking, a key technical advantage of the N-shiki roll-end configuration.

Japanese Aesthetics, Optimized for Premium Use

Guided by the spirit of Minimalism | ミニマリズム, the N-shiki box is particularly suitable for premium gift packaging, souvenir products, brands pursuing a clean and sophisticated identity, as well as curated kits, bundles, and gift sets that demand a high standard of presentation. It is an ideal solution for packaging strategies that seek a balance between functional efficiency, transport reliability, and long-term brand value.