HYDRO-TECH

A seasonal line derived from HYDRO-TECH, emphasizing breathability and a cool feel. In a 2011 Chiyoda product announcement, it was presented as business shoes featuring a ventilated sole structure, with sandal styles added later. Unlike BLUE COLLECTION and BLACK COLLECTION, which focus on waterproofness, it foregrounds measures to reduce stuffiness in hot weather and a light, comfortable fit, serving business and everyday use in summer.

A series developed as comfort-oriented dress shoes under HYDRO-TECH. It was presented as men's footwear made with high-grade goatskin, emphasizing ease of walking and comfort against the foot. Whereas PREMIUM DRESS foregrounds waterproof and anti-slip technologies and high-performance materials, CLASSIC served to add another option to the brand’s dress-shoe range, centered on the feel of the materials and everyday comfort.

A business shoe series derived from HYDRO-TECH, centered on lightness. While using natural leather, it pursues lightness and flexibility through Strobel construction and flex soles. Unlike BLUE COLLECTION and BLACK COLLECTION, which foreground waterproofing and slip resistance, it is developed as a line for easy, nimble walking in everyday business use. It is also listed as an independent series name in the current official collection.

The first women’s line launched under HYDRO-TECH. According to Chiyoda’s official materials from 2013, it brought features developed in the men’s series, such as waterproofing and slip resistance, to women’s genuine leather comfort shoes, and was positioned as a brand for active women aged 30 and over. It is a derivative line that added a distinct women’s offering to a group of series previously centered on men.

One of HYDRO-TECH’s lightweight lines, this is a business shoe series that emphasizes cushioning and ease of movement. The official description presents it as designed for long periods of walking and active mobility. In contrast to ULTRA LIGHT, which prioritizes ultralight weight above all else, it highlights insole cushioning and ease of movement while running, serving users in business roles with high activity levels.

A business shoe series derived from HYDRO-TECH, with a strong emphasis on waterproofness and slip resistance. Designed for walking on wet surfaces and on snowy days, it combines slip-resistant soles with a waterproof construction. While BLUE COLLECTION focuses on waterproofness and breathability, BLACK COLLECTION makes road grip a more pronounced feature and continues to be developed as a line for business use in adverse weather.

An all-weather business shoe series derived from HYDRO-TECH, centered on waterproofness and breathability. It foregrounds functionality for use in rainy as well as sunny weather and is offered as a waterproof line for everyday business settings. Alongside ULTRA LIGHT, which focuses on light weight, and BLACK COLLECTION, which strongly emphasizes slip resistance, it is positioned as a major series serving the waterproof business segment.

A series derived from HYDRO-TECH’s casual walking segment. Chiyoda materials from 2013 describe it as a line that applies taping theory to support the arch of the foot and aims to make walking less tiring. Unlike general business-shoe series, it focuses on everyday walking and casual use, with an emphasis on foot-support functions.

A series within HYDRO-TECH focused on outdoor and hiking use. Official materials from 2013 list it as an independent series name, and its product range includes high-cut shoes suited to trekking and mountain walking. While other lines center on business, casual, and walking styles, this series extended functional offerings to rugged paths and outdoor activities.

A series within HYDRO-TECH’s dress shoe segment, with upgraded specifications for materials and functionality. It uses natural leather uppers, an OutDry waterproof-breathable construction, and outsoles developed in collaboration with Vibram. It was offered to discerning consumers in their 30s to 50s. It is a premium derivative line within the brand, serving high-performance dress footwear needs distinct from those of a conventional business line.

A walking-oriented line listed in Chiyoda’s official 2013 materials as one of the independent series names making up HYDRO-TECH. While PREMIUM DRESS covers the dress shoe category, this line is positioned on the walking-use side, offering high-performance specifications. It was organized as a separate series from the standard WALKING and FINE SETTER, and served to add an upper-tier category to HYDRO-TECH’s walking offering.

A HYDRO-TECH series for sports and active use. Official product offerings include models of walking sneakers equipped with multiple features, such as waterproofing and shock absorption. Unlike the leather-shoe-style business line and the specially designed WALKING series, it combines a sneaker shape with ease of walking during exercise, extending the brand’s functionality to more active everyday use.

A walking shoe series derived from HYDRO-TECH, combining style with ease of walking. It features waterproof leather, insoles that reduce impact, and zippers that make the shoes easy to put on and take off, while adding a business or casual appearance suitable for walking. Whereas HYDRO-TECH WALKING prioritizes functionality, this line offers everyday shoes with a polished look.

An independent series responsible for HYDRO-TECH’s walking range. It combines waterproof and breathable functionality from Hydrotechs, a wide, roomy fit, a highly flexible sole, cushioning, and other features to support long periods of walking, including in bad weather. Unlike ULTRA LIGHT, which centers on business shoes, and the various waterproof business lines, it is positioned as the core line for walking across both work and everyday life.

A waterproof line from HYDRO-TECH, this series features waterproof and slip-resistant specifications designed to handle some rain and snow. It also highlights breathability and odor control, with comfort that takes moisture buildup into account. Its functional configuration differs from the BLUE COLLECTION, which combines high waterproofness with moisture permeability, and the BLACK COLLECTION, which focuses on slip resistance. It is offered as a practical line for everyday changes in weather.