Look out your window and it's clear as a bell, then an hour later you're freezing under a juniper bush trying to block the wind with its branches. Welcome to trail running out west.
Check the weather and prepare.
“Go out for a nice trail run, you might think, 'I'm in shorts, I'm in a T-shirt, that's great.' But If I'm going to be out there for a while, I'll often throw in an ultra light windbreaker,” says iRunFar.com's Bryon Powell.
One of Powell's go-tos is the Mountain Hardwear Ghost Lite Jacket, featherweight wind and light precipitation protection ($100.)
For more inclement weather, he goes for The North Face Flight Series Fuse Jacket($250.)“If you're run maybe goes longer than planned, and it was a beautiful 70-degree day and it's dropping down to 40, pull this out and you will be warm.”