The Go-More-Pile jacket from Nau Inc. ($79.50, www.nau.com) rides an increasingly popular aesthetic of clean design and subtle detail that works to similar effect in an outdoors or an urban setting.

It doesn't skimp on performance, either. Over the past two months, I've tested this jacket in temps ranging from 40 degrees to 10 below zero. It is exceedingly warm, yet breathes nicely during a hike or ski.

The Go-More works well alone over base layers or as part of a weatherproof shell system, the Nau worn beneath a waterproof-breathable Gore-Tex or eVent jacket to function as primary insulator of your core.

My favorite feature, and one that sets the Go-More apart, is its thick, furry interior, which incorporates long-fiber faux fur that is exceptionally cozy.

Extra brownie points: The jacket is made of a Polartec Thermal Pro fabric that's 100 percent recycled polyester, always a feel-good feature.

Gripes? An inside pocket would be nice. Also, there's little water repellency, a tradeoff for the jacket's sweat-wicking capability.

Overall, I had few issues with this simply designed jacket, among the warmest in its midweight category that I've ever tried.