If your marathon training has you on the road before the sun comes up or after it sets, the women's Craft CTM Ultra Lumen will let you rack up the miles safely. The CTM Ultra Lumen packs lightweight Ud Foam cushioning that delivers high rebound performance and impressive durability. A three-piece rubber outsole provides confident traction on pavement, and low-profile lugs give you footing on well-maintained trails. To make you easier to see, Craft draped the Ultra Lumen in a one-piece engineered mesh upper decorated with reflective details. Paired with reflective running clothes and running lights, you can stand out when you’re running in the dark. With Craft’s snug and speedy Race Fit, the women's CTM Ultra Lumen will get you through winter marathon training and set you up for a PR this spring. *A note from Craft about sizing: This shoe is made with Craft’s Race Fit. It is built for speed and as a result the fit is slightly more snug than our regular running fit - snug in this case means slightly more shallow at the toe and slightly shorter in length. These attributes of tight fit are engineered purposefully in order to achieve greater velocity. For those of you that are in between sizes, or that prefer more room, we recommend sizing up.