Reference: 397707 A solid and attractive piece you can rely on time and again, the LIGHTNING HZ MID for women works hard to keep you dry and warm. This long-sleeve top hits the sweet spot between T-shirt and midlayer so you stay warm at the outset, but don't get overheated as you tack on miles. It’s also soft enough to wear against your skin if you choose not to wear a tee. Technologies CONCEPT/TECHNOLOGY AdvancedSkin Warm UPF50 FABRICS Double Pique with brushed backing FIT Active fit ZIP 1/2 Zip with stay down puller Benefits Warmth: AdvancedSkin Warm technology keeps warmth close to your body. Moisture control 3D mesh structured fabric absorbs sweat and facilitates evaporation. Reflective details Feel safer running during the darker days of fall and winter – reflective details make you easier to see.