Pennant RFL Over-the-Calf Ultra-Lightweight Sock Men’s

Pennant RFL Over-the-Calf Ultra-Lightweight Sock Men’s

Darn Tough

$28.00

The Pennant sock checks all the fit, comfort, style boxes with its next-to-skin, no-slip boot connection, fatigue-easing arch support, Merino Wool performance, and a dash of drop-needle design. 
  • Men's over the calf socks average 17 in. from heel to cuff - expect them to cover the leg to just below the knee.
  • A performance fit means no slipping, no bunching, no boundaries. Here's to feeling connected and comfortable in your boots mountain after mountain.
  • Multi-zone mesh panels improve venting and flexibility, while reducing bulk and pressure points.
  • Reinforced Achilles and footbeds improve the comfort, durability and fit of our socks so you can wear them cseason after season.
  • Merino Wool has a natural ability to move heat and moisture, keeping your feet warm and dry.
  • These silky, ultra-lightweight socks are smooth, breathable, and feel like a second skin between your feet and boots.
Medium: US 8-9.5
Large: US 10-12
Extra Large: US 12.5-14.5

 

Description

The Pennant sock checks all the fit, comfort, style boxes with its next-to-skin, no-slip boot connection, fatigue-easing arch support, Merino Wool performance, and a dash of drop-needle design. 

  • Men’s over the calf socks average 17 in. from heel to cuff – expect them to cover the leg to just below the knee.
  • A performance fit means no slipping, no bunching, no boundaries. Here’s to feeling connected and comfortable in your boots mountain after mountain.
  • Multi-zone mesh panels improve venting and flexibility, while reducing bulk and pressure points.
  • Reinforced Achilles and footbeds improve the comfort, durability and fit of our socks so you can wear them cseason after season.
  • Merino Wool has a natural ability to move heat and moisture, keeping your feet warm and dry.
  • These silky, ultra-lightweight socks are smooth, breathable, and feel like a second skin between your feet and boots.

Medium: US 8-9.5
Large: US 10-12
Extra Large: US 12.5-14.5

 

Additional information

Option

Eclipse (Med), Eclipse (XL), Eclipse (Lg)

ALPINE ASCENTS BLOG

  • Cascades Conditions Report 9/3/2026

    Hello climbers, It felt like the switch to fall happened in the mountains this week!  Cool temperatures and precipitation have returned to the mountains.  New snow returned to mid and upper elevations over the last couple days, and a handful of inches is expected over the next few days and leading into the weekend as […]

  • Cascades Conditions Report 8/19/2026

    Hello climbers, Conditions continue to stay phenomenal around the mountains in Washington. Smoke forecasts look really good throughout the rest of the week and into weekend. We are starting to see some mid to late August weather patterns start to creep in, with blip of cooler temperatures and light precipitation working its way into the […]

  • Cascades Conditions Report 8/13/2026

    Summer keeps on rolling and climbing in the Cascades is still going strong. Forecasts for the next week look promising. There will be a slight dip in the freezing levels over the weekend which should help keep things nice and cool higher up in the mountains. There’s also a slight change of picking up some […]

Partners & Accreditations

Alpine Ascents International is an authorized mountain guide service of Denali National Park and Preserve and Mount Rainier National Park.
© Copyright 2026 All Rights Reserved. Alpine Ascents International