Overview The Brighton is Tracksmith's winter Runner — an engineered merino mesh in 52% wool, Woolmark-certified, with an open knit through the core for breathability and a closed knit through the sleeves for warmth. Offset neck seam so it disappears under a jacket collar, thumb loops to bridge the gap to a glove, embroidered hare at the chest. Named for Brighton, where the Charles bends cold in January. A base layer on its own in shoulder season, and the first layer under a shell when the temperature drops. Offered in Ivory and Navy. Woolmark certification is rare on this side of the technical apparel world, and the open-knit-core / closed-knit-sleeve construction is a genuine fabric-engineering point, not marketing language. Details Best for: January miles along the Charles or your local equivalentPre-dawn winter runs in sub-freezing coldLayering under shells on the coldest daysShoulder-season base-building, standalone on mild daysTravel kit, packable, naturally odor-resistant, rewearablePost-run warmth in the parking lot before you get in the car Specs: 52% Merino (16.5 micron) / 28% Nylon / 20% Polyester, ~145 gsmWoolmark-certified engineered mesh, open-knit core, closed-knit sleevesThumb loops keep sleeves in place under glovesOffset neck seam sits flat under shell collarsFlatlock seams for anti-chafe wearNaturally odor-resistant, rewear between washes Colourways: Ivory, Navy Sizing: XS / S / M / L / XL Layer under a Session Quarter Zip or Turnover Tights on the coldest days; pair with Inverno Gloves and Merino Tube Socks for the full winter kit. Materials & Care Designed in Boston. Machine wash cold on a gentle cycle with similar colours. Lay flat to dry, do not tumble dry, bleach, or dry clean. Merino is naturally odor-resistant, so rewear between washes rather than over-laundering the wool. A garment bag protects the weave during wash. Follow the care label on the garment for the last word. Bundle & Save Build a bundle and save up to 10% off. Shop Bundle Builder
