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ichinichi studio

: ichinichi studio: The Architectural Foundation & Master Archive

The Kokeshi Gathering 集まり | No. 303, Unisex T-Shirt

Illustration of four colorful Japanese kokeshi dolls arranged in two pairs on a Short Sleeve T-Shirt.

Man sitting on a bench in a modern art gallery with abstract painting in the background

The Kokeshi Gathering 集まり | No. 303
Unisex T-Shirt $35.00

Lychee Ramune | No. 302, Eco Tote Bag

Minimalist line art of a Japanese Ramune soda bottle with lychee fruit on a Tote Bag.

Man holding a black tote bag with a pink bottle design in an office setting

Lychee Ramune | No. 302
Eco Tote Bag $30.00

Lychee Ramune | No. 302, Unisex Pullover Hoodie

Minimalist line art of a Japanese Ramune soda bottle with lychee fruit on a Pullover Hoodie.

Man walking through a clothing store with racks of clothes on either side.

Lychee Ramune | No. 302
Unisex Pullover Hoodie $65.00

Lychee Ramune | No. 302, Unisex Long Sleeve T-Shirt

Minimalist line art of a Japanese Ramune soda bottle with lychee fruit on a Long Sleeve T-Shirt.

Person wearing a dark gray sweatshirt with a pink bottle graphic in an art gallery.

Lychee Ramune | No. 302
Unisex Long Sleeve T-Shirt $40.00

Lychee Ramune | No. 302, Unisex T-Shirt

Minimalist line art of a Japanese Ramune soda bottle with lychee fruit on a Short Sleeve T-Shirt.

Man leaning against a railing on a rooftop with a cityscape in the background

Lychee Ramune | No. 302
Unisex T-Shirt $35.00

Aged Oak | No. 301, Eco Tote Bag

Minimalist illustration of stacked bourbon barrels on an Eco Tote Bag.

Woman holding a tote bag in an art gallery with abstract paintings on the walls.

Aged Oak | No. 301
Eco Tote Bag $30.00

Aged Oak | No. 301, Unisex Pullover Hoodie

Minimalist illustration of stacked bourbon barrels on a Pullover Hoodie.

Person wearing a hoodie with text in a greenhouse filled with plants

Aged Oak | No. 301
Unisex Pullover Hoodie $65.00

Aged Oak | No. 301, Unisex Long Sleeve T-Shirt

Minimalist illustration of stacked bourbon barrels on a Long Sleeve T-Shirt.

Woman holding a mug in a cozy cafe setting

Aged Oak | No. 301
Unisex Long Sleeve T-Shirt $40.00

Aged Oak | No. 301, Unisex T-Shirt

Minimalist illustration of stacked bourbon barrels on a Short Sleeve T-Shirt.

Man sitting on a leather couch in a room with brick walls and large windows.

Aged Oak | No. 301
Unisex T-Shirt $35.00

Twin Prime Balance | No. 300, Unisex Pullover Hoodie

Minimalist Pullover Hoodie featuring the twin prime equation of 149 and 151 forming the number 300.

Man in a white hoodie using a laptop in a modern office setting

Twin Prime Balance | No. 300
Unisex Pullover Hoodie $65.00

Twin Prime Balance | No. 300, Unisex Long Sleeve T-Shirt

Minimalist Long Sleeve T-Shirt featuring the twin prime equation of 149 and 151 forming the number 300.

Person standing on a subway platform with a train arriving in the background

Twin Prime Balance | No. 300
Unisex Long Sleeve T-Shirt $40.00

Twin Prime Balance | No. 300, Eco Tote Bag

Minimalist Tote Bag featuring the twin prime equation of 149 and 151 forming the number 300.

Woman holding books and a tote bag in a library setting

Twin Prime Balance | No. 300
Eco Tote Bag $30.00

Twin Prime Balance | No. 300, Unisex T-Shirt

Minimalist Short Sleeve T-Shirt featuring a mathematical breakdown of the number 300 using prime number sequences.

Man in a loft setting wear the Twin Prime Balance t shirt

Twin Prime Balance | No. 300
Unisex T-Shirt $35.00

Folded Hope | No. 299, Eco Tote Bag

Minimalist geometric illustration of a single paper crane, Tote Bag.

Ichinichi "Peace In The Fold" beige canvas tote bag with red origami crane graphic, held by a Japanese woman in a botanical greenhouse setting.

Folded Hope | No. 299
Eco Tote Bag $30.00

Folded Hope | No. 299, Unisex T-Shirt

Minimalist geometric illustration of a single paper crane, Short Sleeve T-Shirt.

Ichinichi unisex staple t-shirt in ash grey featuring a red origami crane graphic, modeled in a minimalist modern art gallery, Japanese streetwear fashion.

Folded Hope | No. 299
Unisex T-Shirt $35.00

24 Karat | No. 298, Eco Tote Bag

Minimalist illustration of a gold bar, Eco Tote Bag.

Minimalist illustration of a gold bar, Eco Tote Bag.

24 Karat | No. 298
Eco Tote Bag $30.00

24 Karat | No. 298, Unisex T-Shirt

Minimalist illustration of a gold bar, Unisex Short Sleeve T-Shirt.

Man in a yellow shirt standing on a rooftop with a cityscape in the background

24 Karat | No. 298
Unisex T-Shirt $35.00

Lonely Pickle | No. 067, Unisex Pullover Hoodie

Navy hoodie with 'Lonely Pickle' graphic on a white background

Girl wearing a blue hoodie with the Lonely Pickle design

Lonely Pickle | No. 067
Unisex Pullover Hoodie $65.00

Lonely Pickle | No. 067, Unisex Long Sleeve T-Shirt

Blue long-sleeve shirt with 'Lonely Pickle' graphic on a white background

Woman in a 'Lonely Pickle' sweatshirt drinking from a mug in a casual setting.

Lonely Pickle | No. 067
Unisex Long Sleeve T-Shirt $40.00

The Stack | No. 297, Eco Tote Bag

Minimalist illustration of an overflowing hamburger on an Eco Tote Bag.

Man holding a phone and a tote bag with a burger design in a city street.

The Stack | No. 297
Eco Tote Bag $30.00

The Stack | No. 297, Unisex T-Shirt

Minimalist illustration of an overflowing hamburger on a Short Sleeve T-Shirt.

Man in a yellow shirt holding a coffee cup in a coffee shop.

The Stack | No. 297
Unisex T-Shirt $35.00

The Itinerary | No. 296, Eco Tote Bag

Minimalist illustration of a connected flight path or network nodes, Tote Bag.

Minimalist illustration of a connected flight path or network nodes, Tote Bag.

The Itinerary | No. 296
Eco Tote Bag $30.00

The Itinerary | No. 296, Unisex T-Shirt

Product mockup

Unisex athletic heather grey t-shirt featuring a minimalist A-to-B-to-C flight path diagram, modeled by a man in a leather jacket against a city skyline background.

The Itinerary | No. 296
Unisex T-Shirt $35.00

B-Side Tracks | No. 064, Unisex Pullover Hoodie

Product mockup

B-Side Tracks | No. 064, Unisex Pullover Hoodie

B-Side Tracks | No. 064
Unisex Pullover Hoodie $65.00

The architecture of a single day.

一日の設計。

Founded on the strict principles of Japanese minimalism and structural discipline, ichinichi studio is an ongoing study of the daily rotation. We do not chase seasonal shifts or temporary noise. Instead, we engineer permanent, uncompromising artifacts—garments and objects of utility designed with absolute visual weight, stark typography, and brutalist form. This is not a clothing brand; it is a master archive dedicated to the pure, physical manifestation of a single day.