オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
Alterfort (with inner tent)
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
オルターフォート(インナーテント付属) - TOKYO CRAFTS
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Alterfort (with inner tent)

[Scheduled for delivery in mid-April 2026 or later]
Regular price ¥50,050 Tax included.
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This product is a pre-order item and cannot be canceled. Please review before purchasing.
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Equipped with a transformable system that allows use as an open tarp, it supports any camping style. It combines a comfortable layout that makes entry easy and lets you enjoy the view while relaxing, with a frame that’s simple to set up. No compromises on versatility or usability—the birth of the ultimate all‑in‑one tent. (Patent pending JP 2025-136989; design applications pending JP 2025-017887, JP 2025-017888)

A dual‑purpose tent and tarp—the ultimate all‑in‑one

Equipped with a transformable system that allows use as an open tarp, it supports any camping style. It combines a comfortable layout that makes entry easy and lets you enjoy the view while relaxing, with a frame that’s simple to set up. No compromises on versatility or usability—the birth of the ultimate all‑in‑one tent. (Patent pending JP 2025-136989; design applications pending JP 2025-017887, JP 2025-017888)

Alterfort (with inner tent) Developer's Thoughts

Change form and stay with you longer



In family camping, how you want to spend time changes as children grow and with the seasons. Sometimes you need the security of an enclosed space; other times you want a breezy shaded area to relax. Rather than buying more gear, we aimed to develop one versatile tent that adapts to those changes. It serves three roles with one structure: a shelter erected with just the flysheet, a two‑room tent with the inner hung, and a tarp by removing the side panels. We designed it to be easy for beginners to pitch. The straightforward frame and the sequence of erecting the flysheet first and hanging the inner last help keep the sleeping area drier in rainy conditions. When children grow and you switch to a tent with a larger bedroom, this product can continue to function as a tarp—eliminating the need to purchase a separate tarp and saving storage space at home. From tent season to tarp season: a single structure that changes form and stays by your side.

Instagram #tokyocrafts

VARIATION

By preparing tarp poles separately, it can be used as an open tarp configuration, creating an open space while providing protection from sun and rain. *A 240cm pole is required separately.

The tent can be easily set up by assembling the main arch and bifurcated pole, then erecting the four corner sub-poles.

FEATURES

From tent to tarp

From tent to tarp

By attaching/removing panels the tent transforms and can be used as a shelter, a 2‑room tent, or an open tarp according to needs.
*When using as a tarp, two 240 cm tarp poles are required separately.

High‑livability space

High‑livability space

The entrance height is 180 cm, making entry easier and reducing the need to stoop. Even with the inner tent installed, there is ample living space for the family to gather.

Hang‑type inner tent

Hang‑type inner tent

The inner can be hung in either the front or rear position.

Use as a shelter

Use as a shelter

Can be pitched using only the flysheet without the inner tent, providing a spacious interior when used as a shelter.

Expandable side panels

Expandable side panels

Side panels are easy to attach and remove, allowing flexible arrangements as needed. The design also allows for future expansion such as optional linkable panels or new accessories.

Side panel raise

Side panel raise

Side panels can be raised to create an awning and expand the living area. *Two additional poles required for hinging.

Lower ventilation

Lower ventilation

The upper part of the side panel can remain closed while only the lower section is rolled up. At night, set the inner to mesh to maintain privacy while ensuring ventilation.

Beginner‑friendly framework

Beginner‑friendly framework

The frame is easy to erect for beginners, reducing setup burden.

Fits standard campsite plots

Fits standard campsite plots

Fits within a typical 8×8 m campsite plot, allowing room for a vehicle and a comfortable layout.

Breathable design

Breathable design

A layout that allows wind to pass through keeps the space cool both when used as a shelter and during sleeping.

REVIEW / Q&A

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SPECS

Material
Flysheet: 75D polyester ripstop
Assembled size
Approx. W 435 × D 340 × H 180 cm
Storage size
W 75 × D 35 × H 25 cm
Weight:
Approx. 12.1kg
Country of origin
China
Items included
Flysheet, inner tent, 2 side panels, main pole ×1, sub poles ×4, pegs, ropes, storage bag
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