- Smartwool, Underwear & Socks
- Smartwool SW001571 Hike Light Cushion Ankle Socks
- Smartwool Men's PhD® Run Ultra Light Low Cut Socks – Aerobics First
- Smartwool Socks Review: Are These Classic Hiking Socks Worth It
- Smartwool Women's Hike Light Stitch Mid Crew Socks
- Smartwool PHD Outdoor Medium Crew
- Smartwool PHD Ultra Light Women's Ski Socks - Tan/Purple
- Smartwool PhD® Pro Outdoor Medium Crew Sock - Women's
- Women's Smartwool PhD Pro Hike Crew (Charcoal) — TC Running Co
- Smartwool Women's PHD Socks Outdoor Light Mid Crew
- SmartWool PhD Outdoor Light Mini (Medium Gray) Low-Rise Hiking Sock
- Smartwool Hike Full Cushion Crew socks
- Smartwool PhD Light Elite Cushion Ski Socks - Women's
- Smartwool Women's PhD® Outdoor Light Micro Socks
- Smartwool Womens WOMEN-S PHD OUTDOOR LIG GREY - Paragon Sports
- SmartWool PhD Run Light Elite Micro Review
- SmartWool Wm's PhD Outdoor Light Pattern Crew (Medium Gray) Socks
- Smartwool PhD Light Elite Cushion Ski Socks - Women's - Ski West
- Review: Smartwool PhD Outdoor Medium Crew socks
- Smartwool PhD Ski Medium - Women's Review
- Smartwool PhD Outdoor Light Mini Socks - Unisex
- Smartwool PhD Run Ultra Light Low Cut Socks - Unisex
- Smartwool Women's Hike Light Cushion Low Ankle Socks – Resonance
- Smartwool Women's Hike Light Cushion Low Ankle Socks - Eastside Sports