Arctix
Arctix makes snow and winter clothing, including ski and snow pants, jackets, bibs, base layers and accessories for kids, men and women. It says it has protected people from cold and wet weather for about 20 years.
Snow and winter clothing

686 makes technical apparel for snowboarding, skiing and outdoor use. Its own site says it has developed technical apparel for three decades, and trade press lists its headquarters in Southern California and a 1992 founding year.
Same category, HQ in United States
Arctix makes snow and winter clothing, including ski and snow pants, jackets, bibs, base layers and accessories for kids, men and women. It says it has protected people from cold and wet weather for about 20 years.
Snow and winter clothing
180s makes cold-weather accessories such as ear warmers, beanies and hand warmers. It says it launched its original behind-the-head ear warmer in 1995 and sells products for use on the mountain, on runs and on the commute.
Cold-weather accessories and ear warmers
Arbor Collective makes snowboards, skateboards, clothing and accessories. Its own site says it has done so since 1995 and its flagship store is in Venice, California.
Specialist sports equipment
5.11 Tactical makes purpose-built apparel, footwear, bags and gear for work, training and outdoor use, aimed at public-safety and military customers as well as consumers. The company was founded in 2003 and is headquartered in Costa Mesa, California.
Tactical apparel, footwear and gear
Aero Tech Designs designs and makes cycling shorts, jerseys and accessories in the Pittsburgh area of Pennsylvania. It says its apparel is handcrafted in the USA and made for riders of every body type.
USA-made cycling apparel
Alter Ego Running is an American running headwear brand founded in 2018 by brothers Stephen and Matt Izzo. It designs premium performance running hats and apparel.
Running hats and apparel