Est. Marin County

semper

ever-flourishing

Trail running socks from ocean waste and mountain wool.
Born under the coastal redwoods.

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Origin

Sempervirens

The coastal redwoods of Marin County are called Sequoia sempervirens — ever-living, ever-flourishing.

You never forget running beneath them. The dripping fog that patters your head and shoulders, collected from the Pacific at dawn. The single-track “California carpet” trails worn smooth by decades of footfall. Past ferns taller than us and roots older than any city.

Semper was born from those trails.

Endurance

Built to last years, not seasons. The redwoods still win.

Community

Life is better when shared. Running is better together.

Local Roots

Authentic to the Bay Area. This place shapes who we are and what we strive to make.

Sustainability

Eco-conscious materials, small batch releases. Figuring out a way to give back a portion of every sale to redwood conservation.

The First Run

one sock

Our first production is simply going to be a sock. We're just getting into this and want to see how it goes. Sign up to follow along below.

Materials

Ocean waste and mountain wool. Nothing else. Regenerated nylon spun from recovered fishing nets, blended with responsibly sourced merino.

45% RWS Merino 45% ECONYL® 10% Rec. Elastane

Construction

Micro-crew height. Light cushion only where it counts — heel, forefoot, achilles. Built for single-track, fine on pavement.

Micro-Crew Seamless Toe Arch Band Mesh Zones

Colorway

One color makes the first run. Three are in the running — all pulled from the trail itself.

Redwood Fog Moss

semper dirt semper tempo semper fog semper dancing semper joy semper community semper trails semper sunscreen semper wool semper semper semper dirt semper tempo semper fog semper dancing semper joy semper community semper trails semper sunscreen semper wool semper semper