light insulated half-zip
Prospect
-10°0°10°20°30°40°50°60°70°80°90°
Comfortable 30–44°, holds to 24° (under a shell)
Your reading is 38°. Right in its range.
Insulation on the front and shoulders, where the wind hits, and grid fleece on the back, where you sweat. Wear it alone on a dry 40° morning or under any shell when it isn't. Named for the hill in Somerville that you'll run up to test it.
Ships from Somerville tomorrow morning. Flat $8.

- — 60g synthetic insulation, front panel
- — Grid-fleece back and sleeves
- — Thumb loops
- — 9" half-zip
What goes with it at 37°.
Outside

Smoot
wind shell · $148
Middle

Prospect — this one
light insulated half-zip · $158
Skin

Alewife
long sleeve tee · $78
Legs

Hopkinton
regular tight · $88
Pick your usual tee size above and we’ll size these to match.
Other mid-layers