Best selling Functional undershirts from On Running

Here you’ll find the best Functional undershirts from On Running. The ranking is based on the best-selling products from this brand within the category. In addition to sales volume, factors such as availability, pricing, and overall customer relevance also influence the order. For each product, we include a short description and the most important highlights from customer reviews, giving you a quick overview of the most popular On Running options. This page always stays fresh and updates automatically.

1. On Running Climate functional zip shirt

The On Climate Shirt is a technical running shirt designed for female athletes, available in pink color and XL size. This performance garment features advanced moisture-wicking technology that efficiently transports sweat away from the skin to keep you dry and comfortable during intense workouts. The fabric incorporates temperature-regulating properties to help maintain optimal body temperature across varying weather conditions. Constructed with flatlock seams to minimize chafing and irritation during extended wear, the shirt offers a comfortable fit with strategic ventilation zones for enhanced airflow. The lightweight material provides excellent breathability while maintaining durability for regular training use. The design includes reflective elements for improved visibility in low-light conditions, making it suitable for early morning or evening runs. The shirt features a relaxed fit appropriate for the XL size category, with ergonomic patterning that allows for a full range of motion during running activities. The fabric composition includes recycled materials as part of sustainable manufacturing practices, contributing to reduced environmental impact. The garment is designed for easy care with machine washability while maintaining its technical properties through multiple wash cycles. The colorfast dye ensures the pink hue remains vibrant without bleeding during laundering. This running shirt represents a practical choice for athletes seeking reliable performance wear with thoughtful design elements focused on comfort and functionality during physical activity. 

2. On Running Core T

The On Core-T Men's is a technical running shirt for male athletes in a black color scheme with subtle contrast accents. This performance outerwear utilizes advanced moisture-wicking technology to effectively draw sweat away during intense physical activity, keeping the wearer dry and comfortable. Strategically placed ventilation zones in heat-intensive areas enhance air circulation and regulate body temperature. Flat seams throughout minimize chafing and irritation during extended wear, making it suitable for long-distance runs and training sessions. The material composition of polyester-elastane blend offers a balanced combination of durability, stretchability, and shape retention. The shirt features a round neckline with a tag-free design for added skin comfort. Reflective elements are integrated into the design to increase visibility in low-light conditions. The athletic cut provides a close-fitting silhouette without restricting movement and is available in size S. The material is lightweight, weighing approximately 120 grams, and is designed for quick drying after washing. Care instructions recommend machine washing at 30°C with similar colors and avoiding fabric softeners to maintain the technical properties. This shirt represents a successor model in On's running apparel line, focusing on functional design for ambitious runners who prioritize performance and comfort in their training gear. 

3. On Running Performance T

The On Performance T is a technical running shirt for female athletes in minimalist black, size M. Made from advanced moisture-wicking material, this shirt effectively draws sweat away and keeps the wearer dry and comfortable during intense training. The lightweight fabric offers excellent breathability with strategic ventilation zones for improved air circulation and body temperature regulation. A seamless construction minimizes chafing and irritation, while the ergonomic cut provides optimal freedom of movement for running, training, and other athletic activities. Reflective elements enhance visibility in low-light conditions, improving safety during early morning or evening runs. The material retains its shape and color even after repeated washing, with durable seams at stress points for long-lasting performance. The minimalist design is suitable for both training sessions and casual wear, featuring a comfortable fit that follows the natural contours of the body without restricting movement. Care instructions recommend machine washing at 30°C with similar colors and avoiding fabric softeners to maintain the technical properties. This performance-oriented shirt is a practical choice for female runners seeking reliable sportswear with functional benefits. 

4. On Running Performance L g T

The On Performance Long-T for women in black, size L, is a technical running top designed for female athletes, offering comfort and functionality during training. This long-sleeve T-shirt utilizes On's special performance fabric technology with moisture-wicking properties to keep you dry during intense sessions. The lightweight material provides optimal breathability and efficient temperature regulation in various running conditions. Flat seams minimize chafing and irritation for comfort during extended wear. The ergonomic cut follows natural movements with strategically placed ventilation zones in high-sweat areas. The minimalist design features reflective details for better visibility in low-light conditions, while a tag-free collar prevents skin irritation. The fabric retains its shape and color after multiple washes and dries quickly, making it suitable for consecutive training days. This performance top seamlessly combines with other running layers and is designed for year-round use, with temperature-regulating properties that adapt to different weather conditions. The black color offers a versatile look that pairs well with various running pants. Size L corresponds to the standardized sportswear size for an optimal fit during movement. This technical garment represents On's commitment to functional running apparel that supports athletic performance through thoughtful design and material selection. 

5. On Running Core

The On Core Long-T for women in black/black XL is a technical running top designed for female athletes, featuring a minimalist black-on-black design in an extra-large size. This performance garment is made from moisture-wicking functional fabrics that efficiently transport sweat away from the skin, helping to regulate body temperature during intense exertion. The long-sleeve design provides protection against cooler temperatures or sun exposure, while the athletic cut ensures minimal fabric interference with movement. Strategically placed seams reduce chafing and irritation during repeated movements, with continuous flat seams for enhanced skin comfort. The fabric composition offers a balance of breathability and durability, maintaining its shape and performance characteristics even after repeated wear and washing. The collar and cuffs are designed for a secure yet comfortable fit without restrictive binding. This top seamlessly integrates with other running apparel and is suitable for various training environments, from indoor treadmill sessions to outdoor road runs. The minimalist aesthetic focuses on function over fashion, with the black color providing versatility and resistance to visible stains. Care instructions recommend machine washing in cold water and air drying or tumble drying on low heat to preserve fabric integrity and moisture management properties. This garment is part of On's technical running collection, specifically developed for the demands of endurance sports. 

6. On Running On Core Singlet

The On Core Singlet is a technical running top designed for performance-oriented athletes. This minimalist singlet impresses with its lightweight, breathable construction featuring strategic ventilation zones that enhance airflow during intense training sessions and competitions. The fabric efficiently wicks moisture away, keeping the wearer dry and comfortable even during prolonged exertion. With a close-fitting yet non-restrictive design, this singlet offers optimal freedom of movement with minimal air resistance. The design includes flat seams to prevent chafing and irritation, making it suitable for long-distance runs. Available in a versatile black color with contrasting black accents, this singlet presents a sleek, professional appearance. The size XS is tailored for a precise athletic fit, ensuring that the garment stays in place during dynamic movements. The fabric retains its shape and performance characteristics even after repeated washes, providing reliable durability for regular training use. This singlet is part of On's performance running collection, developed to meet the demands of serious runners who prioritize function and comfort in their sportswear. The minimalist design focuses on essential features without unnecessary elements, making it an ideal choice for running in warm weather, track training, and competitive races. The moisture-wicking properties help regulate body temperature, while the breathable fabric construction ensures consistent comfort at varying intensity levels. This garment represents a practical solution for athletes seeking high-quality running apparel that combines technical functionality with understated style. 

7. On Running Climate Shirt

The ON Climate Shirt is a highly advanced performance shirt specifically designed for active athletes. It features cutting-edge moisture management technology that effectively wicks sweat away from the skin, maintaining optimal body temperature during workouts. The lightweight, breathable fabric with strategic ventilation zones ensures optimal airflow and enhances comfort during intense training sessions. The shirt is equipped with four-way stretch, allowing unrestricted freedom of movement while retaining its shape even after repeated wear and washing. Flat seams minimize friction and skin irritation, while the tag-free collar design eliminates potential discomfort. Additionally, the shirt offers UPF 50+ sun protection, making it ideal for outdoor activities in various weather conditions. With a close-fitting yet comfortable design that follows athletic contours, this shirt is the perfect choice for runners who value both performance and comfort. The use of recycled polyester helps reduce environmental impact without compromising technical performance standards.

- Advanced moisture management technology for optimal comfort
- Lightweight, breathable fabric with strategic ventilation zones
- Four-way stretch for unrestricted freedom of movement
- UPF 50+ sun protection for outdoor activities.
 

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