Base layers are a great addition to any athlete's wardrobe, offering an easy extra layer when the temperature drops, and our Nike running base layers collection features some of the best on the market. Featuring modern tech like Nike DRI-Fit sweat-wicking fabric, the collection includes baselayer tops, tights, sports bras and shorts, allowing for full coverage when necessary. There's lots of different Swoosh designs and colours for you to pick from too, with Nike base layers for both men and women here. For the full collection, shop Nike for men, women and kids.