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Pearl Izumi Merino Thermal Sock

Mfg PartNum:
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Durable as a steel frame

Most Merino socks start great and go threadbare before the season is out.

But then most socks aren't made from a unique blend of Merino wool and polyester sourced from recycled plastic water bottles. The result is a sock construction that's durable as a steel frame.

That's not to say the Merino Thermal Socks are hard to the touch or heavy on the feet. With a double weight knit and flat seam, they are soft, warm, and comfortable under any pair of cycling shoes, no matter the season or terrain ahead.

Features & Specs:

  • Transfer Merino fabric combines wool and recycled polyester for sustainable technical performance
  • 18.5-micron fine Merino Wool Repreve Recycled Polyester created from recycled plastic water bottles
  • Double weight knit for extra warmth
  • Flat toe seam construction provides superior comfort over toes
  • Anatomic arch compression for a performance fit
  • Tall cuff height (21 cm) unisex sizing
  • Fabric made in USA

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Shoe Size

Cuff Height: Crew 

Fabric Type: Wool / Wool Blend 

Phantom Core - Small

Mfg PartNum: 143519016PWS 

Phantom Core - Medium

Mfg PartNum: 143519016PWM 

Phantom Core - Large

Mfg PartNum: 143519016PWL 

Phantom Core - X-Large

Mfg PartNum: 143519016PWXL 

Smoked Pearl Core - Small

Mfg PartNum: 143519016PVS 

Smoked Pearl Core - Medium

Mfg PartNum: 143519016PVM 

Smoked Pearl Core - Large

Mfg PartNum: 143519016PVL 

Smoked Pearl Core - X-Large

Mfg PartNum: 143519016PVXL 

Ordered by Most Relevant First
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Reviewed 4/6/2020
by Anonymous
Cycling Enthusiast
san luis obispo
Value Rating
Overall Rating
great fit and comfort

biking every day and only sock I use now.

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*Orders received before 3:00PM Pacific time are shipped the same day (Mon-Sat). Orders over $50 are shipped free (USA only, excluding AK and HI). Some exceptions apply. See Shipping for details. 88