--- title: "Partner Product Release: La Sportiva Beyond Longsleeve X Polartec® Delta™" date: 2025-04-18T08:58:00-07:00 author: Luana Domanti canonical_url: "https://www.polartec.com/news/partner-product-release-la-sportiva-beyond-longsleeve-x-polartec-delta" section: News Entries --- [Skip to Main Content](#main-content-wrapper) Accessibility Feedback Contact Us. ![Foreground Image](https://polartec-polartec.transforms.svdcdn.com/production/img/Polartec-P.R.-LaSportiva-News-Entries-Details-950x1080.jpg?w=950&h=1080&auto=compress%2Cformat&fit=crop&dm=1744991131&s=aa1408c7a48ef5ef8653f1ea21697b55) [ News Hub. ](https://www.polartec.com/news) Main Story. 04. 18. # Partner Product Release: La Sportiva Beyond Longsleeve X Polartec® Delta™ ![1 Polartec P R La Sportiva Article](https://polartec-polartec.transforms.svdcdn.com/production/img/1-Polartec-P.R.-LaSportiva-Article.jpg?w=450&h=450&auto=compress%2Cformat&fit=crop&dm=1744991798&s=6d75adc36aa6ddd808388585a61e8ee4) ![3 Polartec P R La Sportiva Article]() ![2 Polartec P R La Sportiva Article]() ![4 Polartec P R La Sportiva Article]() If you’re looking for more than just a functional long-sleeve top, **La Sportiva’s Beyond Longsleeve** technical layer is about to become your new best friend. Expressly **designed for strenuous hiking**, **mountain running**, and **light touring**, Beyond Longsleeve offers a smarter way to take on the heat. Made with [**Polartec® Delta™**](https://www.polartec.com/fabrics/base/delta), also known as **the ultimate cooling fabric**, its specialized knit structure **prevents sticky damp discomfort while keeping you cool** in the process. In other words, Beyond Longsleeve is built to help you perform at your peak – even on exposed ridgelines and sun-drenched trails. We love the fact that La Sportiva crafted this amazing technical shirt with endurance and durability in mind. Even more important for those hot days on the trail? It’s [Polartec® Delta™](https://www.polartec.com/fabrics/base/delta) construction **enhances your body’s natural cooling process** to let you stay focused when temperatures rise. The lightweight performance fabric also **promotes airflow**, **reduces wet cling**, and **disperses moisture** like a pro. All of which ensures best-in-class cooling to keep you comfortable as you push your limits. With reinforced shoulders to increase abrasion resistance, Beyond Longsleeve is ideal for carrying packs over long distances. Underarm and side mesh inserts provide **additional breathability**, **ensuring constant airflow** where it’s needed most, and **reflective details improve visibility in low-light conditions** for better safety during early morning jaunts or late evening descents. To further enhance its **performance** and **longevity**, [Polartec® Delta™](https://www.polartec.com/fabrics/base/delta) is **treated with Polartec® Fresh Face**, a **plant-based odor control solution derived from mint**. Unlike traditional metal-based antimicrobial treatments, **Fresh Face is a renewable, environmentally friendly approach** that effectively reduces odors while minimizing ecological impact. Weighing just 169 grams (size large), **Beyond Longsleeve is a natural go-to for anyone who demands lightweight efficiency in hot weather conditions**. After all, with **cutting-edge cooling technology**, **sustainable odor resistance and a strategic design**, La Sportiva has delivered the perfect solution for high output activities in the heat. [ Get it now. ](https://www.lasportiva.com/it/maglia-maniche-lunghe-escursionismo-beyond-longsleeve-m-uomo-zahl005) Share. 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