Seirin Co., Ltd. The first collaboration between PORTER CLASSIC’s masterpiece model “Newton” and OKURA. Pre-orders for limited edition backpacks will start from April 21st (Monday) at SEILIN ONLINE SHOP

[Seirin Co., Ltd.] The first collaboration between PORTER CLASSIC’s masterpiece model “Newton” and OKURA. Pre-orders for limited edition backpacks will start from April 21st (Monday) at SEILIN ONLINE SHOP ​
Seirin Co., Ltd. Press release: April 21, 2025 “PORTER CLASSIC” masterpiece model “Newton” and “OKURA” collaborate for the first time. Pre-orders for limited edition backpacks will start from April 21st (Monday) at SEILIN ONLINE SHOP The first special collaboration between , founded in 2007 by Mr. Katsuyuki Yoshida and Mr. Reo Yoshida, and , the flagship store of Seirin Corporation’s original brand “BLUE BLUE JAPAN”
https://prcdn.freetls.fastly.net/release_image/67072/46/67072-46-fa99c33d40cdf7baf61c43f3d82d0782-1900×820.jpg PORTER CLASSIC took three years to develop the next-generation backpack “Newton” series, which uses the long-established bedding manufacturer “Showa Nishikawa’s” pressure-dispersing futon “muatsu” for the shoulder harness, and combines OKURA’s unique use of materials and the warmth of handiwork. Two models, “NEWTON CITY RUCKSACK” and “NEWTON BUSINESS RUCKSACK”, will be available in limited quantities. *This product is available for pre-order at SEILIN ONLINE SHOP. Pre-order period: April 21, 2025 (Monday) 12:00 to May 12, 2025 (Monday) 11:00 In-store sales are scheduled to begin on Friday, May 16, 2025. ONLINE SHOP ​
■NEWTON CITY RUCKSACK (No.1018671) 77,000 yen (tax included) Image
URL: https://prcdn.freetls.fastly.net/release_image/67072/46/67072-46-3a576e4fdffcf9483cf795c3aad3dd84-1785×2500.jpg “NEWTON CITY RUCKSACK” uses Cordura nylon, which is resistant to wear and tear, for its body, giving it both a smart impression and high durability. It features pockets that can be used for a variety of purposes, and a compact size that is comfortable for women and children to use and fits city life.
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https://prcdn.freetls.fastly.net/release_image/67072/46/67072-46-be3fed1a07b4fee6a42f3fa6102443bc-1666×2500.jpg In this collaboration, a hand-embroidered heart-in-yan patch is placed on the right pocket of the main body, using thread dyed with Obakuromoji, which is harvested in the Noto region of Ishikawa Prefecture. Furthermore, a handle cover made of Sakiori fabric made from recycled “BLUE BLUE JAPAN” fabric is attached to the handle of the main body, and can be attached and removed with a snap button.
https://prcdn.freetls.fastly.net/release_image/67072/46/67072-46-737fa815476bad8394461dfefd59aeb4-1666×2500.jpg
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https://prcdn.freetls.fastly.net/release_image/67072/46/67072-46-a58c69a40690425fca6294e919e3a9a7-1666×2500.jpg In addition, a small heart is embroidered on one side of the main zipper pull using the same Kuromoji-dyed thread, and the triangular seat at the base of the shoulder harness features OKURA’s iconic Heart In Yang piss name. The inside pocket has the “ARIGATO” name attached to it, making it a special item with attention to detail. ONLINE SHOP ​
■NEWTON BUSINESS RUCKSACK (No.1018672) 77,000 yen (tax included)
https://prcdn.freetls.fastly.net/release_image/67072/46/67072-46-33d258571ce6c3d12f8bcba2b053e962-1733×2600.jpg Color: BLACK, NAVY/Size: ONE “NEWTON BUSINESS RUCKSACK” uses Cordura nylon, which is resistant to wear and tear, for its body, and has a reliable capacity that can even accommodate a 15-inch laptop. Although it has a simple design, it has a large number of pockets, making it easy to organize your belongings, and it has a structure that reduces the strain on your shoulders and lower back when carrying around a bag for long periods of time, such as commuting or business trips.
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https://prcdn.freetls.fastly.net/release_image/67072/46/67072-46-a7565502fa3bcf37b62a7e891c273206-1666×2500.jpg This model is also filled with the attention to detail that is unique to OKURA. On the right pocket of the main body, there is a
hand-embroidered heart-in-yan patch using thread dyed with
Noto-produced Obakuromoji, and the handle is equipped with a handle cover made of Sakiori fabric, which is made from recycled fabric used in “BLUE BLUE JAPAN”. It can be put on and taken off with a snap closure.
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https://prcdn.freetls.fastly.net/release_image/67072/46/67072-46-8bcd67c745b9919cb92851f242e19735-1666×2500.jpg The main zipper pull has a small heart embroidered on one side only, the triangular seat at the base of the shoulder harness has the heart-in-yang piss name, and the inside pocket has the name “ARIGATO”. Both models are unique products that are a fusion of PORTER CLASSIC and OKURA characteristics and technology. ONLINE
SHOP ​ Brand Site ​ Official Site ​
■Release start date: April 21, 2025 ■Development stores ・ OKURA ・ SEILIN ONLINE SHOP PORTER CLASSIC Established in 2007 by Katsuyuki Yoshida and Reo Yoshida. We are particular about “Made in Japan” and have a “world-class standard” concept. While working on tradition, antithesis entertainment culture, and craftsmanship, we pursue products that will be loved by the next generation and their grandchildren. OKURA Opened in Daikanyama in April 1993. The appearance is reminiscent of a traditional Japanese warehouse. As the flagship store of the original brand “BLUE BLUE JAPAN,” we express a unique world view with products that give a Japanese feel centered around “indigo” and in-store displays that let you feel Japan’s rich four seasons. ■OKURA official website ■OKURA Official Instagram ■BLUE BLUE JAPAN brand site ■BLUE BLUE JAPAN official website ■BLUE BLUE JAPAN Official Instagram ■Release page ■Inquiries regarding release Seilin Press Co., Ltd. seilin-press@hrm.co.jp TEL 03-3461-9043 Instagram／ LINE@ ／ Facebook