The Sportful Giara windbreaker vest features a windproof outer lining and an inner lining of Polartec Alpha Direct fabric for adequate thermal protection. The back panel is made of breathable stretch fabric for proper ventilation. To adapt to the particularities of gravel or bikepacking, this gilet has two generous pockets on the back.Features:Use: Gravel, BikepackingWindproof outer layer made of water-repellent finish fabricPolartec Alpha Direct inner layerBack made of elastic, breathable fabricTwo generous back pocketsTechnology:Polartec AlphaPolartec technology with active insulation that regulates body temperature during physical activity and when not moving. It also has the latest in breathable technology that eliminates the need to add or remove layers while on the move.