15 Must-Try Activewear Brands Shaping 2025's Fitness Fashion Scene

Fitness fashion has come a long way in recent years, with 2025 shaping up to be a game-changing year in activewear. From eco-friendly materials to groundbreaking designs, activewear brands are not only focused on performance but also on style and sustainability. Whether you’re a yoga enthusiast, a dedicated runner, or just love athleisure, these 15 brands are setting the tone for the future of fitness fashion. This list will highlight key players in the market that are redefining how we dress for movement and comfort while being environmentally conscious.

1. Lululemon

Lululemon remains a dominant force in the activewear industry, known for its high-quality, comfortable pieces that combine performance and style. Their signature leggings and sports bras offer support for intense workouts while maintaining a sleek look for casual wear. The brand's commitment to innovation is evident in its fabric technologies like Luon and Nulu, which ensure breathability and stretch. Sustainability is also a focus, with Lululemon integrating eco-friendly practices into their production.

2. Athleta

Athleta stands out for its inclusive sizing and commitment to sustainability. Offering activewear for all body types, the brand uses eco-conscious fabrics like recycled polyester and organic cotton. Athleta’s designs are both functional and fashionable, ensuring comfort during high-intensity workouts and casual activities. Additionally, the brand’s focus on fair labor practices and ethical manufacturing makes it a top choice for consumers who prioritize ethical fashion without compromising on performance.

3. Nike

Nike continues to innovate with high-performance activewear that blends technology with design. The brand’s dedication to research and development has led to the creation of specialized fabrics like Dri-FIT, which helps wick moisture away during workouts. Beyond performance, Nike is focusing on sustainability, with initiatives like the use of recycled materials in its apparel. Known for its bold designs, Nike remains a top choice for athletes and fashion-forward fitness enthusiasts.

4. Outdoor Voices

Outdoor Voices is all about making fitness fun and accessible to everyone. With a focus on inclusivity, their activewear is designed for both rigorous activities and leisurely outdoor pursuits. Known for its minimalist aesthetic and comfortable fit, the brand encourages people to move in a way that feels natural. Outdoor Voices also champions sustainability by using recycled fabrics, making it a favorite among eco-conscious fitness enthusiasts seeking stylish, functional gear.

5. Gymshark

Gymshark is a favorite for fitness enthusiasts and influencers alike, offering sleek designs and high-performance activewear. Their clothing is known for its flattering fit and innovative fabrics that support even the most intense workouts. The brand’s strong social media presence has helped it cultivate a loyal following. Gymshark’s commitment to inclusivity, with sizes ranging from XS to 3XL, makes it a brand that caters to a diverse audience while maintaining style and functionality.

6. Sweaty Betty

Sweaty Betty is a UK-based brand that has quickly made a name for itself in the global activewear scene. Known for its stylish and high-performance gear, the brand offers everything from yoga leggings to running jackets. Sweaty Betty combines fashion and function with an emphasis on supporting women in their fitness journeys. The brand’s commitment to sustainability is reflected in its use of eco-friendly fabrics and ethical production processes.

7. Fabletics

Founded by Kate Hudson, Fabletics has become a popular activewear brand thanks to its stylish designs and affordability. The brand’s subscription model offers members access to exclusive discounts on their wide range of activewear. Known for its inclusive sizing and trendy styles, Fabletics caters to women who want both performance and fashion. The brand also uses sustainable materials like recycled polyester to minimize its environmental impact while offering high-quality workout gear.

8. Puma

Puma’s activewear line brings together innovation and comfort with designs that suit both athletes and casual wearers. Known for its bold color schemes and modern aesthetics, Puma creates gear that performs well during workouts while looking stylish. The brand’s sustainable initiatives, such as using recycled materials and reducing waste in production, align with its commitment to a greener future. Puma continues to be a go-to brand for those who value performance and sustainability.

9. Reebok

Reebok is a trusted name in activewear, offering a wide range of clothing designed for performance. From training gear to running apparel, the brand’s clothing is built to withstand the toughest workouts. Reebok has also leaned into sustainability, with eco-friendly materials like organic cotton and recycled polyester making their way into its collections. Known for its iconic style and functional designs, Reebok remains a top pick for serious athletes and casual fitness fans alike.

10. Lorna Jane

Lorna Jane is an Australian brand that blends fashion with functionality, offering a wide variety of activewear for women. With an emphasis on fit and style, their leggings, sports bras, and tops are crafted for both performance and comfort. The brand has become known for its innovative designs that seamlessly transition from the gym to daily wear. Lorna Jane also focuses on sustainable production practices, using eco-friendly fabrics to reduce its environmental footprint.

11. Beyond Yoga

Beyond Yoga is a go-to for ultra-soft, comfortable activewear designed for yoga, Pilates, and everyday wear. Their pieces focus on body positivity and inclusivity, offering sizes up to 3XL. The brand uses sustainable fabrics, including recycled polyester, and aims to create clothing that helps people feel good both inside and out. Known for its luxurious feel and flattering cuts, Beyond Yoga is a brand that brings comfort and style to the forefront.

12. Carbon38

Carbon38 is a high-end activewear brand that offers a mix of stylish and performance-driven pieces. The brand caters to women who prioritize both fashion and function in their workouts. Carbon38’s collection includes everything from yoga leggings to sports bras and outerwear, all designed with sleek silhouettes and innovative fabrics. Known for collaborating with top designers, Carbon38 continues to redefine activewear by fusing luxury with performance.

13. Alo Yoga

Alo Yoga is a brand that blends luxury and performance, offering premium yoga wear and activewear. With a strong focus on comfort, their pieces are designed to support your practice while keeping you stylish. Alo Yoga is also committed to sustainability, using eco-friendly fabrics in their collections. Their commitment to mindfulness and quality has made them a favorite among yogis and athletes alike who value both function and style.

14. Girlfriend Collective

Girlfriend Collective is a sustainable activewear brand that focuses on creating eco-friendly clothing using recycled materials. Known for its inclusive sizing and body-positive approach, the brand produces comfortable, durable, and stylish activewear for all body types. Girlfriend Collective's commitment to sustainability extends beyond its materials, as the brand ensures ethical manufacturing practices and aims to reduce its environmental footprint, making it a top choice for environmentally-conscious fitness enthusiasts.

15. TALA

TALA is a UK-based brand that combines stylish activewear with sustainability. Known for its innovative use of recycled fabrics and eco-friendly materials, TALA offers high-performance activewear that’s both functional and fashionable. The brand focuses on creating versatile pieces suitable for various activities, from workouts to daily wear. TALA’s commitment to sustainability and inclusivity, with sizes ranging from XS to 4XL, makes it a popular choice among environmentally-conscious and style-driven consumers.