The Nike Sportswear Tech Fleece shorts are made from a double-sided structural Fleece fabric, designed to give you optimal warmth with reduced bulk and weight. Side seam pockets offer quick storage, while the elastic drawstring waist allows you to easily adjust the fit.The transparent stripe highlights the iconic Tech Fleece zip pocket. Tech Fleece is a lightweight insulating material with a premium look and soft feel inside and out. Nike Tech Fleece sandwiches an insulating layer of cotton between two layers of jersey fabric for lightweight warmth.