Ultimate Direction Men's Ultra Jacket 100% Nylon Exceeds the Breathability and Waterproof standard required by the Ultra Tour du Mont Blanc. Fastbreath Ultra - waterproof/breathable fabric. Fully-taped seams Internal chest pocket holds and protects iPhone 6 and features a headphone port. Underarm vents provide ventilation and cooling while wearing a hydration vest Ergonomic shoulder construction enhances range of motion. Self-bound seams provide superior durability Patent-Pending TunnelEffect hood channel for airflow and moisture management. Patent-Pending FlipMitts - self storing mitts provide waterproof warmth Weight: 5.9 oz / 167 g. Materials: 48gsm 20D HexNylon Fastbreath Ultra Fabric