Most sun shirts absorb UV — trapping heat in the process. Halo FS1 redirects it, converting solar energy into the red and near-infrared wavelengths your cells actually use. It's the only garment engineered to work with the sun, not against it.

It feels like wearing nothing. The photonic performance is built into the fabric — no coatings, no hardware, nothing between you and the most comfortable athletic fit you've worn.

Less heat buildup during activity. A kind of ease that's hard to name but easy to feel. Some tell us their skin responds differently than it does to regular sun exposure. We didn't set out to collect these stories — they found us.

The performance is permanent in the ways that matter most — it's structural, not a coating. Like any energy-converting material, the signal may subtly shift over the life of the garment. We think of it like a solar cell with a long, long runway. Wash it like any performance athletic wear.

Surprisingly, some of our most passionate customers come from here. People who've spent years avoiding the sun — or dealing with flare-ups after it — have found Halo to be a different experience entirely. We think it's because the light conversion reduces the wavelengths and heat that stress skin, while delivering more of what supports it. It's consistent with what we saw in a small pilot study with a dermatology research partner: participants with psoriasis and alopecia responded favorably. We're still learning, but what we're hearing is hard to ignore.

Anyone who spends time outside and wants that time to do more. Athletes, people who work outdoors, anyone managing their health with intention. If you've ever felt the difference between a good day in the sun and a draining one — this is built around that difference.