Built-in Warmth Without the Bulk
When comfort is a critical design driver, drirelease® HEAT delivers advanced thermal performance without compromising versatility, wearability, or ease of maintenance. This high-performance yarn technology brings together warmth, moisture control, and effortless care in a single, reliable platform.
Built-In Warmth Without the Bulk
At the core of drirelease HEAT is a specially engineered fiber blend designed to retain body heat while remaining lightweight and low-bulk. This makes it ideal for layering systems where thermal performance is essential, but bulk can hinder mobility, fit, or aesthetic. Whether you’re designing for cold-weather activity, variable climates, or transitional seasons, drirelease HEAT keeps wearers comfortably warm—without overbuilding the garment.
Moisture Wicking and Fast Drying by Design
Unlike surface-treated fabrics, drirelease HEAT offers permanent moisture-wicking and fast-drying properties that are embedded into the yarn itself. Moisture is rapidly pulled away from the skin and released into the air, helping regulate body temperature and eliminate that damp, uncomfortable feeling during or after activity. And because this performance is built in, it won’t wash out or fade over time.
Versatility Across Categories
From base layers to midweights, casualwear to activewear, drirelease HEAT offers design flexibility across fabric weights, knit structures, and silhouettes. It performs equally well in high-output athletic apparel and relaxed everyday garments—giving product developers the freedom to innovate across categories without sacrificing thermal comfort or technical credibility.
Easy Care, Everyday Wear
drirelease HEAT fabrics are machine washable and easy to care for, making them practical for the consumer and efficient in product design. With shape retention, they maintain their appearance and performance wear after wear, wash after wash—delivering real value to both brand and end user.
For performance-focused designers and developers, drirelease® HEAT is the material solution that brings together warmth, dryness, comfort, and wearability—beautifully balanced in a modern fabric platform that’s ready to work across your entire collection.






About Optimer Brands
Optimer Brands, the makers of drirelease®, Dricomfort®, and OPTIMER® continue as a pioneer in textile technology and part of the best performance fabrics and activewear in today’s marketplace. It’s what lets you move more comfortably as you pursue your passions by wicking, drying, cooling, and freshening. The best brands and retailers in the World utilize Optimer’s expertise, sophisticated fabrics, smart performance, and eco-friendly advances. As a company, Optimer Brands is committed to its promise of comfort.