The Seirus Weather Shield Mask is a two in one face mask and neck-up combination due to its extra long scarf. The mask has Tri-Laminate to keep you warm. It is a windproof yet the large breathing holes make this mask breathable comfortable. The weatherproof combination of Lycra outer, fleece inner and a breathable, windproof / waterproof membrane in between ensure warmth. It is top contoured to seal under goggles.