The Aksium Thermo Men's Cycling Jacket isn't Mavic's most heavy duty winter jacket that'd be the Ksyrium Pro Thermo or the lightest that'd also be the Ksyrium Pro Thermo but it provides the perfect balance of warmth, wind protection, smart features, and affordability, so you won't have to sacrifice that component upgrade you've been pining for just to stay warm this winter. The pillars of winter warmth are insulation and wind protection, and the Aksium delivers both with its Warm Shell Race fabric, which cuts the wind and traps heat while maintaining a soft, comfortable feel thanks to the thin microfleece lining. The microfleece also wicks moisture away from your skin so sweat doesn't build up, and the ergonomic seams give the Aksium a comfortable, easy moving fit that won't irritate or restrict your motion. The details, as they say, are not just details they make the difference. In the case of the Aksium, those difference makers include an asymmetrical zipper and soft fleece lined collar to prevent chin irritation and reflective highlights for increased safety. There are three back pockets, a zippered chest pocket for a phone or wallet, and a routing port for easy management of headphones.