Summer Formal, Cooler, Smarter. High-Function Formal Wear Available in 4 Patterns! – Supporting Ceremonies on Hot Days –

Haruyama Trading Co., Ltd. (Head office: Okayama City, Okayama Prefecture, Representative Director and President: Masashi Chiyama), which supports the health of business professionals, will launch four new types of high-function women's summer formal wear from the “SOFFICE” high-performance women's line, which can be worn cool and smartly even in harsh heat, at Haruyama stores nationwide (excluding some products) from Friday, May 1, 2026.

Due to recent intense heatwaves, significant challenges in summer formal scenes include "it's tough to wear a jacket" and "stickiness from sweat and inconvenience of putting on and taking off." Influenced by climate change, which has led to summer extending year by year, our company has significantly expanded its summer formal category lineup. This series uses lightweight materials for all products. Furthermore, three products, excluding the no-collar one-piece dress, use highly breathable outer fabric and are equipped with a contact cooling function*1, achieving a comfortable wearing experience.

In addition, by adopting a "front zipper" (front opening) for all types, smooth changing is possible without disturbing hair or makeup, and by making them washable at home, post-wear care is easy.

Achieving both functionality to overcome intense heat and high design that completes an outfit in one piece

The current lineup features variations that can be chosen according to the scene, such as an ensemble-style design that looks like a jacket is being worn, and a pants set-up that allows for active movement. Furthermore, we propose next-generation summer formal wear that pursues "time-saving, comfortable, and attractive" complete coordination with one piece, including models with necklaces and loose silhouettes that provide body shape coverage.

Main features of each product:

• SOFFICE Ensemble-style Necklace-attached OP Formal
A design that looks like a peplum jacket is layered in one piece, creating a neat impression even without a jacket in the hot summer.

• SOFFICE No-collar One-piece Formal
Lightweight material and a simple collarless design gently cover the worrisome abdominal area of the upper body.

• SOFFICE Layered-style Blouse Pants Set Formal
Achieves comfortable wear with full elastic waistband pants, while a front-opening blouse creates a neat pants style.

• SOFFICE Loose Silhouette Ribbon and Pearl Motif One-piece
Designed with vertical lines from front tucks and a loose silhouette, allowing pregnant women to wear it with peace of mind.

Product Overview

【Product Name】 SOFFICE Ensemble-style Necklace-attached OP Formal
【Price】 23,900 yen (tax excluded) / Sizes: S, M, L, LL

【Product Name】 SOFFICE No-collar One-piece Formal
【Price】 19,900 yen (tax excluded) / Sizes: S, M, L, LL

【Product Name】 SOFFICE Layered-style Blouse Pants Set Formal
【Price】 23,900 yen (tax excluded) / Sizes: S, M, L, LL

【Product Name】 SOFFICE Loose Silhouette Ribbon and Pearl Motif One-piece
【Price】 19,900 yen (tax excluded) / Sizes: S, M, L, LL

【Color】 Black
【Material】 100% Polyester
【Release Date】 May 1, 2026 (Friday)
【Stores】 Haruyama stores nationwide

*Please inquire at your nearest store as some products may not be available at certain stores.

【Inquiries】 Haruyama Customer Service 0120-923-924

*1 Confirmed from Boken Quality Evaluation Institute Nagoya Testing Center No. 40125005345-1 Quality Inspection Report

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