The warmest in the Clam sock system, the Clam Merino Wool Heavyweight Sock is built for extreme cold. Wear it alone for superior warmth, or pair it with the Clam Merino Wool Lightweight Liner Sock for maximum insulation and comfort. Naturally thermal, moisture-wicking, and odor-resistant, this heavy-duty sock keeps your feet warm, dry, and comfortable during the harshest winter conditions—perfect for ice fishing, snowmobiling, or any cold-weather adventure.
- Warmest sock in the Clam system
- Wear alone or layer with the Lightweight Liner Sock for extra insulation
- Thermal and moisture-wicking properties keep feet dry and warm
- Naturally anti-microbial and odor-resistant
- Designed for extreme winter comfort and protection
- Part of the sock system from Clam where we recommend pairing this sock with the Clam Lightweight liner sock for warmth and moisture management
- Sizes: M/L (shoe 8–10) and XL/2XL (shoe 11–13)
