Good brands of hiking socks include Merrell and Smartwool, as of 2015. Each brand offers everyday hiking socks that are designed for warm weather, as well as winter hiking socks designed for cold weather.
Hiking socks by Merrell include the Chameleon Stretch for warm weather and the Moab for cold weather. The Chameleon Stretch has reinforced cushioning, and both socks offer arch support.
Hiking socks by Smartwool include the Hiking Light Crew Socks for warm weather and the Mountaineering Extra Heavy Crew Socks for cold weather. The Hiking Light Crew Socks offer arch support and flat-knit toe seams for comfort. The Mountaineering Extra Heavy Crew Socks have a similar design but are heavier to keep feet warmer.