Two women sitting next to each other smiling in BRANWYN's 2025 Merino Athleisure Collection

Limited Edition SWAG Capsule Collection

BRANWYN’s Annual Limited Edition Sustainable Wool Athleisure Gear (SWAG) Capsule Collection redefines what performance apparel can be. More than a base layer, outerwear, or long underwear, it’s designed to be the foundation of your wardrobe—versatile enough for everyday wear and technical enough to perform on the mountain, trail, or mat. With a refined silhouette and thoughtful design, it pairs effortlessly with everything you own while standing up to your most demanding pursuits. You won’t find it in traditional outdoor shops because it breaks convention.

Available exclusively at BRANWYN.com, for a limited time.


Crafted from ethical 100% ultra-fine 17.5 micron Merino, our lightweight 180-gram jersey and 85% 18.5-micron medium-weight 280-gram interlock knits are breathable and buttery soft from day one!

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Merino Jogger - BRANWYN | Performance Innerwear Merino Jogger - BRANWYN | Performance Innerwear
Merino Jogger
Sale price$165.00 USD
98 reviews
Merino Long Sleeve Tee - BRANWYN | Performance Innerwear Merino Long Sleeve Tee - BRANWYN | Performance Innerwear
Merino Long Sleeve Tee
Sale price$125.00 USD
41 reviews
Merino Hoodie Pull Over - BRANWYN | Performance InnerwearMerino Hoodie Pull Over - BRANWYN | Performance Innerwear
Merino Hoodie Pull Over
Sale price$225.00 USD
61 reviews
Merino Short Sleeve Tee-Tops-BRANWYN | Performance Innerwear-BRANWYN | Women's Merino Short Sleeve Tee, BRANWYN women's Merino Short Sleeve Tee is crafted from naturally sustainable wool. Soft, breathable, odor-resistant, and perfect as a baselayer or activewear.-XS-BRANWYN | Performance Innerwear Merino Short Sleeve Tee-Tops-BRANWYN | Performance Innerwear-BRANWYN | Women's Merino Short Sleeve Tee, BRANWYN women's Merino Short Sleeve Tee is crafted from naturally sustainable wool. Soft, breathable, odor-resistant, and perfect as a baselayer or activewear.-BRANWYN | Performance Innerwear
Merino Short Sleeve Tee
Sale price$105.00 USD
No reviews
Zoe McGrady is wearing a BRANWYN women's Merino wool classic tank top, size medium, with a hip-length design. Crafted from naturally sustainable wool. Soft, breathable, and odor-resistant, perfect for baselayers or activewear. The back detail of Zoe McGrady's outfit features a BRANWYN women's Merino wool classic tank top, size medium, with a hip-length design. Crafted from naturally sustainable wool. Soft, breathable, and odor-resistant, perfect for baselayers or activewear.
Merino Classic Tank
Sale price$95.00 USD
No reviews
Merino High - Waisted Slim Joggers - BRANWYN | Performance Innerwear Merino High - Waisted Slim Joggers - BRANWYN | Performance Innerwear
Merino High-Waisted Slim Joggers
Sale price$165.00 USD
No reviews
Merino Wide - Leg Pant - BRANWYN | Performance InnerwearMerino Wide - Leg Pant - BRANWYN | Performance Innerwear
Merino Wide-Leg Pant
Sale price$185.00 USD
No reviews

MONEY BACK GUARANTEE FOR 14 DAYS

Not sure about wool?

Merino is super soft like cashmere!

We know you'll love it! But just in case you don't, we’ll give you a full refund.