Hydrogen offers a high level of warmth and waterproofing with compact Thermore ECODOWN® insulation and Karbonite 20,000. Hydrogen's waterproofing provides breathability, allowing vapour to exit while retaining warmth. Multi-zone insulation mapping makes Hydrogen thermally efficient, delivering effective warmth for all alpine activities. Ample exterior pockets with waterproof zippers carry your essentials on piste and off. Quadra stretch fabric offers versatile performance without sacrificing range of movement.