Top Workout Wear: The Ultimate Brands to Fuel Your Fitness

Finding the perfect workout clothes can significantly enhance your fitness experience, offering both comfort and style. With a plethora of brands catering to different workout needs, it can be challenging to choose the ones that best fit your lifestyle. Whether you are into high-intensity training, yoga, or running, certain brands have established themselves as leaders in creating high-quality, durable, and aesthetically appealing workout attire. To discover some of the best brands that cater to all your fitness apparel needs, take a look at the selections below.

Illustration of workout clothes

Best brands of workout clothes in 2025

Nike

Nike, a leading global sportswear brand founded in 1964, holds a significant 16.4% market share in 2024 for both apparel and footwear, with a 34% share in apparel among teens, demonstrating its strong influence in the workout clothes market; they achieved a revenue of $51.54 billion in 2023, and their innovative designs, including technologies like Dri-FIT and Therma-FIT, provide comfort and performance. While facing competition, Nike's continued success in the athletic apparel industry is solidified by its market presence. You can explore their workout clothing options at Nike's official website.

Under Armour

Under Armour, established in 1996, has become a leading producer of high-performance workout apparel, known for its innovative moisture-wicking fabrics that enhance athletic performance; with over 25 years of experience, they consistently achieve high customer satisfaction ratings and hold a significant share, around 15%, of the global sports apparel market, offering a diverse range of products for various sports and fitness activities; their commitment to cutting-edge technology and designs makes them a top choice among athletes and fitness enthusiasts worldwide.

Lululemon

Lululemon, founded in 1998 in Canada, has become a leading brand for workout clothes, capturing 6.5% of the North American sports apparel market in 2023, with a revenue of $9.6 billion USD. Its popular Align leggings, known for their buttery-soft fabric, have made the brand a staple in athleisure, with e-commerce sales predominantly in the US at 80%. You can explore more of their products on their official website.

Adidas

Adidas, a leading sportswear brand since 1949, is globally recognized for its high-performance workout apparel, holding the second-largest market share in the sportswear industry, with 2023 revenues reaching approximately $23.2 billion, despite a slight decrease of 2.22% from 2022; while its market share in North America averaged 6% over the past five years, the brand's commitment to innovation and quality ensures its clothing is suitable for various fitness activities like HIIT and running, and their footwear segment generated around 12.14 billion euros in sales during 2023. With a focus on both functionality and style, Adidas continues to be a top choice for athletes and fitness enthusiasts worldwide.

Gymshark

Founded in 2012 in the UK, Gymshark has become a leading fitness apparel brand, with over 10 million customers worldwide and a social media following exceeding 18 million, achieving a valuation of over £1 billion by 2020, and generating $40.9 million in revenue in October 2024 alone. The brand offers a wide range of workout clothes from leggings to hoodies and has expanded to 230 countries. Gymshark focuses on direct sales to consumers through their e-commerce website and mobile app, ensuring easy access to their innovative and high-quality fitness products.

Puma

Puma, a leading sportswear brand with a 2.6% market share in the $396 billion global market in 2023, offers a wide array of workout clothes featuring moisture-wicking Drycell technology and comfortable, flexible designs such as the Eversculpt line for women and Ultrabreathe mesh shorts for men. Their footwear, like the PWRFRAME TR3 training shoe, incorporates Profoam EVA for bounce and Pumagrip outsoles for traction. With a focus on performance, Puma's clothing and shoes, including their CLOUDSPUN technology, are designed to maximize your workout. The brand's sales have risen from EUR 3 billion to over EUR 8 billion since 2014. You can explore their diverse collection.

Athleta

Athleta, founded in 1998, is a popular brand for women's workout clothing, known for its high-quality, durable, and stylish activewear, with many customers reporting that their Athleta leggings last for 5 years or more with frequent wear. They offer a variety of fabrics, like the Softluxe for yoga and Powervita for high-intensity workouts, catering to different activities and preferences. As a certified B Corp, they achieve high sustainability standards, making them a great choice for those seeking both performance and ethical production. Athleta also boasts a great return policy and loyalty programs. You can explore their products on their website.

Reebok

Reebok, initially founded in 1895 as J.W. Foster and later renamed in 1958, has become a leading brand in workout clothes, offering high-performing activewear designed with technology to keep you comfortable during any fitness activity, from tees and tanks to pants and shorts, with a focus on sweat-wicking fabrics; the brand was acquired by Adidas in 2005 for $3.78 billion before being sold to Authentic Brands Group in 2021 for $2.5 billion, further cementing their position in the sportswear market which is expected to reach $547 billion by 2024; Reebok also has a significant market share in India, with 47% of the sports footwear and apparel category; you can explore their products at reebok.com.

Fabletics

Fabletics, established in 2013, is a popular activewear brand known for its stylish and functional workout clothes, offering a wide range of sizes from XXS to 4X, with many customers praising the comfortable, second-skin feel of their leggings and the unique color options; the brand achieved peak revenue of $500 million in 2023 and maintains a strong conversion rate of 4.5-5.0% with an average order value between $75-$100, making it a more affordable option compared to some other high-end brands while maintaining good quality, with many users also praising its inclusivity; their VIP membership offers even greater value, with discounts and personalized picks, although some customers have noted the website can be glitchy and sizing can be inconsistent; Fabletics also offers a fitness app, Fabletics FIT, featuring live and on-demand workouts. You can explore their collections.

Outdoor Voices

Outdoor Voices, founded in 2013, is a popular brand known for its high-quality activewear, boasting an estimated annual revenue of $46.6 million and focusing on comfortable and functional designs like their famous Exercise Dress, which has been repurchased by customers multiple times over the years. Catering to a diverse audience with a female demographic of 74.53%, the brand is headquartered in Austin, Texas, and is recognized for its innovative materials and emphasis on recreational activity. You can explore their product line at outdoorvoices.com.