The Scott Defined Light Women's Pullover is an awesome example of a simple fleece layer that has a multitude of uses. For the most part, the Scott Defined Light Women's Pullover is just a shirt, but the construction and lightweight nature make it so much more than just that. Composed of 92% Polyester and 8% Elastane knit, the athletic fit garment feels like a warm, second skin. While we wouldn't call it a specific base layer, it's really more of a mid-weight that's capable of being your only layer if you want it to be. It's a highly breathable piece that prefers to be layered under a shell for optimum performance. As a result, the possibilities are endless as far as the usability and functionality of the pullover are concerned. Another nice feature of the pullover is the anti-chafe chin guard that does exactly what it says. The cold, dry winter weather is brutal on your skin, and it's a nice touch when a company does something simple to combat the damage that can be done to your face. The quarter zip allows you to put it on and take it off with ease, something that is not always found on pullovers such as this. It's a simple and nice feature that a lot of wearers will appreciate. The fleece is soft brushed for comfort, and there's nothing like the feel of fleece. As a result of the technology and construction of the pullover, the Scott Defined Light Women's Pullover is an excellent piece to put in your wardrobe. The versatility and performance are simply top-notch.