Nike Sportswear Tech Fleece Older Kids' (Boys') Trousers Boys, Kids, Obsidian Heather, Size. lightweight warmth. modern fit. the nike sportswear tech fleece older kids' (boys') trousers give you ultralight warmth, a slim, modern silhouette and plenty of pockets for storage on the go. warmth without weight with its unique three-layer design, nike tech fleece provides the insulation and soft touch of traditional fleece, but with a lighter feel and a sleeker look. freedom to move the slim design and an inside leg gusset give you a streamlined feel and freedom to move. more details side seam pockets and vertical zip pocket stretch waistband with external drawcords stretch ribbing at cuffs fabric: 69% cotton 31% polyester machine wash imported.