What to wear on a long run in changing weather
A long run can cross several forecasts. Build the full weather window, choose a base outfit, and give one removable adjustment a clear job.
Dress for the run,not just the forecast.
Tell Layer the effort of your run. It reads the shifting weather and dials your layers to both.
SEE IT LIVEHOW IT WORKSHow Layer works
Native by relationship
01
One call, not a forecast.
Layer reads the hours you will actually be out and the effort you are running, then names what to wear. An answer you can act on, instead of a dashboard to interpret.
02
In the layers you already own.
Add your kit once and the call comes back in your own wardrobe: that vest, that thermal, by name.
03
It remembers how it felt.
LOGGING LIVELog a run in a tap: too warm, just right, cold for the first mile. Today that is your own record of what worked. Using it to tune the next call is what comes next.
One engine. Every forecast.
The same call, re-resolved for the day in front of you.
It reads you, not just the forecast.
Effort-aware, not just weather-aware
Pace lies; effort doesn't. Layer leans on heart rate and relative effort, so an easy long run and a hard tempo get dressed differently.
Ready for the shift
Layer reads the run window: cooling later, wind early, rain entering mid-run. It dresses you for the conditions you'll meet, not just the ones at the door.
One decisive call
No score to interpret, no toggles to weigh. What to wear, stated plainly, the way a coach would tell you.
Optional Strava connection
Bring in the runs you already log.
Connect Strava to bring recent running activity and shoes into Layer. The connection is read-only, and Layer never posts.
What it reads
Recent run times, sport, duration, distance, approximate start location, and your Strava shoes.
What you get
Recent running activity and shoes brought into Layer without entering them again.
Read-only
Layer does not read heart rate and never posts to Strava.
Whatever the sky does next, you left the house ready for it.
The forecast is only the starting point. Layer considers effort, duration, and changing conditions, then names one outfit for the run.
“I built Layer because I was tired of standing at the door, second-guessing a jacket. It should just know.”
— Building Layer in the openAvailable now on iPhone and the web.
Conditions can change from mile one to mile six. Layer reads across the run window, not only the moment you head out.
Layer’s approachFAQ
Good questions.
Weather apps tell you what it is. Layer tells you what it means for your run, accounting for effort and changing conditions. Run feedback can be logged today; deeper personalization remains planned.
Use Layer on the web or iPhone. Widgets and Apple Watch are planned for a later release.
Yes. The web app remains available in any browser, so you can get a recommendation without installing anything.
Layer Field Log
Weather is never one number.
Read story
What should a running weather app tell you?
A running weather app should interpret the whole forecast window, planned effort, duration, real garments, and the limits of its personalization.
What to wear running in wind and rain
Wind and rain turn one temperature into several clothing decisions. Here is how to account for exposure, effort, duration, and changing conditions.
Dress for the run, not just the forecast.
Take the iPhone app with you, or make the call on the web.