We have products certified by bluesign® and OEKO-TEX® STANDARD 100. For further information please contact your sales representative.

For further information please contact your sales representative.

Products such as buckles that are comprised of a combination of two or more parts should be stored with their constituent parts fixed firmly together. Due to the inherent characteristics of resin materials, deformation or accidents caused by detachment (unbuckling) may result from the long-term storage of these products while under load in an irregular position.

Buckles become fragile in cold places, such as snowy mountains. Be careful to avoid contact with hard surfaces, such as stone. The buckle will become damaged when exposed to greater-than-standard loads. Please consult with our sales representatives to confirm the standard strength of our products.

Plastic buckles are made of thermoplastic. Use at high temperatures over 100°C causes deformation.

There is no risk of this happening; the color agent is kneaded into the plastic material.

YKK’s cord stoppers use plastic springs to avoid interference with metal detectors and to ensure light weight. Plastic springs sometimes change shape to fit the cord size. This is called creep. You can restore strength by correcting the spring shape after taking out the cord. Cord stoppers that utilize resin springs become weaker when the cord is left inside the spring for an extended period. This phenomenon— called “creep”—is unique to resins. Strength can be restored by taking out the cord and correcting the plug’s feet with your finger.

No, it is not. New plastic buckles sometimes have flushing at an invisible level. It will become smooth after 5-10 in-out operations.

Please clean using a brush or wet cloth.

YKK buckles are primarily made of polyacetal resin or polyamide resin. Please be careful in the presence of chemicals such as acids or alkalis, ensuring that the buckles do not come into contact with them. Please always take care during outdoor use. Sun light or UV radiation causes loss of performance and surface cracking after 1-2 years, depending on the color.

Different webbing materials, types and thicknesses result in different measured values. Please test and check the condition before item selection.

Please refer to the “Item Variation” column on each item page and choose the correct size that corresponds to the width of the webbing.

We have some standard colors. Also, DTM colors are available; please contact our sales representatives for more details.