Biking can get cold - you have a lot of wind flow across your body while cycling as compared to say running. For temperatures below 60 degrees, many bikers like to don a jacket to help keep warm. There is a world of choices when it comes to fabrics, cuts, and features, and we'll highlight the choices here. The most popular - and one of the most expensive - materials is Gore-tex. It breathes well, is very durable, and it is what could be called a one-way material, since it lets moisture out but generally doesn't let wetness in. There is also rip-top nylon, which does excellent as a wind barrier, but less so for thermal retention. Probably the warmest material of all, and it'll maintain it's ability to add warmth when wet, is wool. Yep, that wool - the itchy material! It's a classic jacket material for cycling due to it's ability to lock in warmth even while wet, though of course, it can get a bit "ripe" over time when wet, and it will shrink. It's really a nostalgic mention here of wool, since you'd be hard pressed to find many wool biking jackets out there these days. Mostly, you'll be shopping for synthetic materials of some sort. When it comes to cuts, you'll notice that many bike jackets have an extra long flap of material in the back. This is to serve as a shield for water and debris flying off your rear wheel while cycling. On the flip side, sometimes cycling jackets have a low cut around the belly - the reason why? Because you'll be somewhat hunched over while riding, so you don't want extra material bunching up in your gut region while biking. Generally, the sleeve length will be long to allow for the added reach you'll need for the handlebars. Lastly, there is a whole range of cuts for the neckline, and you just have to select the one that fits you best. You don't want a jacket that is too tight as it would restrict your arm movement when you reach for brake levers or for gels in your bike jersey pockets. You don't want to be disappointed in the jacket sizing you get, so make sure to try on a wide range of biking jackets by different bike brands. From lightweight jackets for those crisp and cool fall rides to ultra-warm jackets with full-length arm and torso coverage for the harshest winter days, there is an extensive selection of bike winter jackets in various styles out there. Cycling jackets can be for biking around town, often to and from work, and then for all types of bike events, from centuries to charity rides to screaming down mountainsides in cold conditions. You want to select a bike jacket that can withstand many seasons of constant wear, a bike jacket that is designed with features - at a good price - for the type of riding you'll be doing.