How Did They Make It So Light and Warm? A Behind-the-Scenes Look at the Development of GU's "Warm Padded" Outerwear

The "Warm Padded" series from GU Co., Ltd. strikes a perfect balance between stylish design and high functionality, all at an affordable price, making it a bestselling winter outerwear staple. The secret to its popularity? Continuous updates from materials to design, driven by listening closely to customer feedback.

In this exclusive interview with the team behind "Warm Padded," we delve into its evolution from its predecessor, "Heat Padded," explore the unique materials of the current lineup, and get a glimpse into the brand's vision for the future.

The history of the wildly popular "Warm Padded" series traces back to the "Heat Padded" line, launched in 2020. The core concept was to create "outerwear as warm and light as down," something customers had been eagerly asking for.

"Through extensive trial and error, we developed our own unique ball fiber padding, which is lighter than conventional sheet padding and as fluffy and soft as down. This allowed us to offer trendy designs at accessible prices."

This material innovation resulted in a "padded outerwear" that was not only high-performance and stylish but also accessible enough for everyday wear. Yet, the company's work didn't stop at the product launch. Amazingly, since the debut of "Heat Padded," they have revisited and refined the materials and designs every single season to meet the diverse needs voiced by their customers.

This season, the line was renamed "Warm Padded," signifying its rightful evolution from the original "Heat Padded."

The Secret Behind the New Material: Achieving Both Lightness and Warmth

A key highlight of the "Warm Padded" series is the proprietary padding material developed in-house by the company. This innovation made it possible to finally deliver on the customer's core demands: lightness and warmth in one package.

"By mixing three types of polyester with different properties at a perfectly calibrated ratio, we developed a soft, hollow-fiber padding that effectively traps air. This breakthrough allowed us to overcome the common issue of heaviness in traditional padded outerwear while still ensuring excellent heat retention."

The meticulous attention to detail extends beyond the padding and into the design itself. By finely tuning the amount of filling in each section of the jacket, the designers have managed to minimize bulkiness and achieve a beautifully balanced silhouette. This dedication is evident even in the hood, which went through numerous pattern iterations and adjustments to ensure a perfect fit.

The Secret Behind the Bestseller's Popularity

Now, let's take a closer look at the bestselling "Warm Padded Parka." This highly popular piece is versatile enough to blend seamlessly into any setting, from casual outings to the office.

The secret to its popularity lies, first and foremost, in its design. The non-quilted exterior creates a minimalist impression and prevents a bulky look. Zippers on the front and pockets are concealed for a sleek, clean finish. As a unisex item, it features a slightly longer hem that covers the hips, offering extra coverage and comfort.

Being an outerwear piece, there are absolutely no compromises when it comes to functionality.

"The parka is equipped with heat retention, durable water-repellent, and windproof features. We've made the cuffs adjustable to keep wind and rain out. The double-zip design not only adds styling versatility but also helps to release trapped heat that can build up due to the windproofing, making it more comfortable to wear."

Building on this popularity, a new addition to the series has been released: the "Warm Padded Coat" (*available exclusively at the online store and in Hokkaido stores). This coat offers even greater protection against the cold, thanks to changes in the type and amount of padding, as well as an updated design.

In terms of insulation, the coat uses a padding that is approximately 1.5 times warmer than that of the "Warm Padded Parka." The volume of padding is also 170% greater by area ratio. It features a mid-length cut and a double-sleeve construction with inner ribbed cuffs to completely block out cold air. Like the parka, it maintains a stylish, non-quilted design.

The Allure of the Warm Padded Series

The extensive lineup is a testament to the company's policy of catering to a wide range of users and meeting their diverse needs. Many items are designed to be unisex, showcasing a commitment from the very planning stages to create gender-neutral apparel.

For instance, one of the most popular items, the "WARM PADDED Stand Jacket," boasts a sportier and more youthful design. While its wide quilting ensures heat retention, durable water repellency, and wind resistance, it also packs in user-friendly features like an inner pocket for storage and patch-and-flap buttons to keep your belongings secure.

Additionally, the "Warm Padded Flight Jacket" incorporates elements of military wear, creating a rich texture by combining different materials like a faux leather shell and a faux fur collar. It’s a piece that maintains warmth while also standing out as a true fashion statement.

GU's Never-Ending Quest for Innovation

In today's fashion industry, sustainability is a critical and unavoidable issue. The company has set a goal to reduce greenhouse gas emissions from raw material production, material sourcing, and sewing by 30% by 2030, compared to 2019 levels. That's why the "WARM PADDED" series also heavily incorporates recycled materials.

For example, the "WARM PADDED Parka" uses recycled polyester fibers for parts of its outer shell, lining, and padding [1]—a prime example of the initiative to regenerate and utilize finite resources. Furthermore, guided by the principle of taking responsibility for clothing post-sale, the company is advancing its "RE.GU" initiative, which collects pre-loved garments from customers in-store to be fully recycled or reused.

A representative shared, "With our customers' growing interest in sustainability, we are proactively using recycled materials whenever possible, not just for this specific product line."

We concluded by asking what their hopes are for the future of the "WARM PADDED" series.

"We hope it will follow in the footsteps of our 'Barrel Leg' series, which has sold over 10 million pairs, to become one of GU's signature product lines, loved by customers all over the world."

The evolution of the "WARM PADDED" series is set to continue. By listening intently to customer feedback and expanding the variety of materials and designs, the company continues to fulfill its responsibility to the global environment. This relentless spirit of innovation is the driving force behind their product development and the very essence of GU's appeal.