Heat Socks Only XLP – Classic.
Features:
- Consists of 1 pair of BootDoc’s Power Fit Socks integrated with Hotronic’s Heating Elements
- Materials: 74% nylon, 20% elasthan, 6% Merino wool
- Ideal moisture transportation
- Added shin protections
- PFI 50 – Soft, compression rating of 10-15 mmHg
- Sizes: S, M, L, and XL
The Power Fit Index (PFI) indicates the overall level of gradual pressure distribution woven into each pair of BootDoc’s Power Fit Socks. PFI 30 designates a gentle pressure distribution while PFI 90 classifies as strong and is therefore only found in BootDoc’s performance series.












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