The La Sportiva Meridian PrimaLoft® JKT offers the highest possible level of thermal insulation by PrimaLoft® Silver Insulation 100% Eco. Whilst heavily insulated and designed to keep you warm in the worst of conditions (think mountain running & hiking), it is also incredibly easy to pack into your backpack and does not feel clunky. Regulating your temperature helps avoid getting sweaty and feeling like you\'re \'boiling in the bag\', which happens in both the body and hood. 2 front hand warmer pockets (invisible zipper) 1 outer chest pocket Stow pocket Bottom regulation system Hood regulation system Partial VAPOVENT™ construcion Sleeve cuff gaitor Perfect fit neopren grip visor Fit: Regular FabricMain: (SPL01) 100% Recycled Polyester - Insert: (TFA04) 100% Recycled Polyester - Lining: (MSH25) 94% Recycled Polyester, 6% Polyester - Body Padding: PrimaLoft® Silver Insulation 100% Eco (100 g) - Sleeve Padding: PrimaLoft® Silver Insulation 100% Eco (60 g) - Partial Padding: PrimaLoft® Silver Insulation 100% Eco (40 g) Weight: 540g