Atlas Helium BCUltra light backcountry performance. Thats what you demand, and thats what the Atlas Helium BC delivers. With the 23 model coming in under 3lbs per pair the Helium BC is almost as light as the name implies. The composite Helium deck provides the feather light foundation and features a unique louver design to shed snow more efficiently. The low profile, tempered steel BC crampon sits lower in the frame to compliment the PackFlat binding and allow for a