# Stretchy Denim Activewear These Ultra-Strech Jeans are Designed for Active Consumers By Katherine Pendrill | Published 2015-12-29 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/ultrastrech-jeans References: [kickstarter](https://www.kickstarter.com/projects/bradspence/boulder-denim-ultra-stretch-stain-resistant-premiu?ref=category) & [boulderdenim](http://boulderdenim.com) 'Boulder Denim' is a line of ultra-stech jeans that are designed for maximum comfort and flexibility. Although denim is a highly durable material, it is not the most flexible textile. These stylish jeans are made with an [ultra-strechy material](https://www.trendhunter.com/trends/infinity-collection-1) that makes them perfect for vigorous activities. Boulder Denim is made from [eco-friendly material](https://www.trendhunter.com/trends/mango-jeans) that is cruelty-free and vegan-freindly. Unlike other jeans, Boulder Denim features patented woven technology that allows for flexibility and movement. To make the jeans appropriate for the outdoors, the exterior is also finished with a [hydrophobic and strain resistant coating](https://www.trendhunter.com/trends/coated-jeans). As a result, the jeans are flexible and durable enough for indoor or outdoor activities. The ultra-strech jeans are perfect for those who are looking for a stylish and sustainable alternative to traditional activewear. ## Trend Insights (Trend Hunter) - Score: 5.9/10 - Popularity: 85% | Activity: 84% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### Why This Trend Is Growing - **Ultra-strech Denim:** Introducing ultra-stretch denim for maximum comfort and flexibility in activewear. - **Eco-friendly Material:** Utilizing eco-friendly and cruelty-free materials in activewear for sustainable fashion options. - **Hydrophobic Coating:** Incorporating hydrophobic and strain resistant coating in activewear for enhanced durability and outdoor performance. ### Industries Being Reshaped - **Fashion:** The fashion industry can embrace ultra-stretch denim to offer comfortable and flexible activewear options to consumers. - **Sustainable Fashion:** The sustainable fashion industry can utilize eco-friendly materials to create ethical and cruelty-free activewear. - **Outdoor Apparel:** The outdoor apparel industry can integrate hydrophobic coating in activewear to provide durable and water-resistant clothing for outdoor enthusiasts. ## Related on Trend Hunter - [Memory-Shaped Denim Collections](https://www.trendhunter.com/trends/yoga-jeans-2025.md) - [Easygoing Denim Pants](https://www.trendhunter.com/trends/snugfit-denim.md) - [Durable All-Purpose Lifestyle Denim](https://www.trendhunter.com/trends/denim-001.md) - [Performance-Focused Casual Apparel](https://www.trendhunter.com/trends/lee-x.md) - [Curve-Enhancing Wide Leg Jeans](https://www.trendhunter.com/trends/yoga-jeans-lily.md) - [Tactical Technical Fabric Pants](https://www.trendhunter.com/trends/vollebak-carbon-fibre-dyneema-pants.md) - [Nature-Inspired Denim Collections](https://www.trendhunter.com/trends/springsummer-2025-denim-collection.md) - [Weather Resistant Jeans](https://www.trendhunter.com/trends/coated-jeans.md) - [Size-Inclusive Organic Jeans](https://www.trendhunter.com/trends/sizeinclusive-organic-jeans.md)