We Compared the Signature Fabrics of Four Major Activewear Brands

Every major activewear brand has given its signature fabric a proprietary name — Nulu, DreamKnit, Airlift, Dri-FIT — which makes direct comparison harder than it should be. Stripped of the branding, the underlying differences come down to a handful of measurable properties.

Lululemon's Nulu and Luon

Nulu is Lululemon's buttery-soft, lighter-weight fabric, generally used in lower-impact pieces where next-to-skin feel matters more than heavy compression. Luon is the older, slightly more structured compression fabric used in original core styles — noticeably firmer and more supportive than Nulu, at a small cost to softness. If you are shopping specifically around Align's Nulu drape, see Lululemon Align alternatives for four comparable studio leggings at different price points.

Vuori's DreamKnit

DreamKnit is built around a brushed, performance-fleece feel rather than a compression fabric — softer and less structured than either Lululemon fabric, prioritizing everyday comfort over studio-specific support. It's a meaningfully different design goal, not simply a softer competitor to the same goal.

Alo's Airlift and Aloform

Airlift is a compressive, second-skin fabric built for a close, sculpted fit — closer in intent to Lululemon's Luon than to Vuori's DreamKnit, but generally cut tighter. Aloform, used in newer pieces, is a slightly heavier, more structured variant aimed at higher-impact use.

Nike's Dri-FIT

Dri-FIT is less a single fabric than a moisture-wicking treatment applied across a wide range of base fabrics, which is why Dri-FIT products can feel meaningfully different from each other depending on the specific garment. It's the most performance-lab-oriented of the four, generally prioritizing sweat management over the soft-hand feel the others compete on.

The practical takeaway: a fabric's proprietary name tells you almost nothing on its own. What matters is whether it's built for compression versus everyday softness, and how it holds up specifically to your own wash-and-wear routine — information that shows up more reliably in a brand's own care instructions and weight specs than in the marketing name itself. For technical outerwear outside this studio-legging set — including Nanamica's Alphadry and The North Face Purple Label — see our Japanese activewear guides.