The Darn Tough Vertex Coolmax Ultra-Light Cushion maintains the super lightweight fit and feel of the 1772 but adds just a hint of impact absorbing cushion underfoot. Feathery on the foot but with enough volume to create unsurpassed comfort and tremendous durability. Great sock to turn to on those hot days.

• Just enough cushioning to make a difference on those longer runs.
• Coolmax is king when it comes to optimal moisture management and cooling in even the most demanding conditions.
• High stitch count (1441 stitches per sq. inch) ensures a secure streamlined foot hugging fit.
• Reinforced heel and toe box.
• True seamless construction reduces hot spots and blisters.

Darn Tough Vertex Running Sock Specs

Sock Fibers:

52% - Coolmax
43% - Nylon
5% - Lycra Spandex