On multi-day touring and mountaineering trips reliable lightweight warmth is absolutely essential to keep us pushing towards the summit. The North Face Summit Casaval Hybrid Hoodie has proven exceptional at fighting off the chill while delivering top-tier breathability during high-output activity. The Ventrix insulation is perfect while the sun is shining keeping us protected against cold wind blasting down the slopes. The breathable fabric combines underarm vents and a perforated back panel to offer dynamic temperature regulation ensuring that we stay comfortable no matter how steep the skin track gets.