OVERVIEW

The Session Quarter Zip is the layer you pull over a singlet on a 50-degree morning and pull off by mile three. A Tencel-blended 200 gsm fabric (33% Tencel, 33% Poly, 31% Nylon, 3% Elastane) with Nilit Cooling yarn that feels like a sweatshirt and dries like a tech tee, with a zipper at the collar that vents heat on demand and a close cut that layers cleanly under a shell. The hare sits embroidered at the chest, quiet as usual. For October on the Charles, April in Toronto, the shoulder seasons when you're never quite dressed right at the start. The Session Quarter Zip in Tracksmith's Tencel-blend Session fabric — the mid-weight layer for October on the Charles, April in Toronto, every cold-start morning that warms up by mile three.

DETAILS

Best for:

October tempo runs in 40-50 F Shoulder-season base-building Warm-ups before a cold-weather workout Mid-layer under a rain shell Post-run café sits, reads street, performs on the run Travel kit for a cool-weather race weekend

Specs:

33% Tencel / 33% Polyester / 31% Nylon / 3% Elastane, 200 gsm Nilit Cooling fibres for temperature regulation Quarter-zip collar vents heat on demand Close cut sits clean under shells Flatlock seams for anti-chafe wear Embroidered hare at the chest

Colourways: Black

Sizing: XS / S / M / L / XL

Pairs with Session Pants and Merino Tube Socks for a shoulder-season warm-up; layer over a Brighton Base Layer on the colder mornings.

MATERIALS & CARE

Designed in Boston. Machine wash cold with similar colours, inside out to protect the embroidered hare. Hang dry or tumble dry on low heat. Do not iron directly on prints or logos. Do not dry clean. Follow the care label on the garment for the last word. Treated well, Tracksmith's performance-poly pieces cycle through years of high-mileage training.

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