Colorado is home to a thriving apparel industry, with many companies producing high-quality clothing and accessories for a variety of markets. Here are the top 10 clothing or apparel manufacturers in Colorado:

Voormi – Website: voormi.com, Phone: (970) 527-3020
Based in Pagosa Springs, Voormi specializes in creating performance apparel for outdoor enthusiasts. Their products are made from natural fibers, such as merino wool and yak down, and are designed to keep wearers warm, dry, and comfortable in harsh environments.

Topo Designs – Website: topodesigns.com, Phone: (888) 613-3393
Topo Designs is a Denver-based company that produces outdoor apparel and accessories, including backpacks, jackets, and hats. Their products are designed to be both functional and stylish, with a focus on sustainable materials and ethical manufacturing practices.

Melanzana – Website: melanzana.com, Phone: (719) 486-3245
Located in Leadville, Melanzana produces high-quality outdoor clothing and accessories made from Polartec fleece. Their products are known for their durability, warmth, and versatility, and are popular with hikers, climbers, and other outdoor enthusiasts.

Green Guru – Website: greengurugear.com, Phone: (303) 258-1611
Green Guru is a Boulder-based company that produces eco-friendly outdoor gear and apparel. Their products are made from upcycled materials, such as bicycle inner tubes and climbing ropes, and are designed to be both durable and environmentally sustainable.

Colorado Timberline – Website: coloradotimberline.com, Phone: (719) 590-1273
Colorado Timberline produces custom apparel and accessories for a variety of industries, including corporate, sports, and outdoor recreation. Their products are made in the USA and are known for their quality and attention to detail.

Lems Shoes – Website: lemsshoes.com, Phone: (303) 747-5409
Lems Shoes is a Colorado-based company that produces minimalist footwear for a variety of activities, including hiking, running, and casual wear. Their shoes are designed to be lightweight, flexible, and comfortable, with a focus on natural movement and foot health.

Never Summer Industries – Website: neversummer.com, Phone: (303) 320-1813
Never Summer Industries is a Denver-based company that produces high-quality snowboards and accessories. Their products are known for their durability, performance, and attention to detail, and are popular with snowboarders around the world.

Colorado Clothing – Website: coloradoclothing.com, Phone: (303) 664-7788
Colorado Clothing produces high-quality apparel and accessories for men, women, and children, with a focus on comfort, style, and performance. Their products are designed for a variety of activities, including outdoor recreation, work, and leisure.

Flylow Gear – Website: flylowgear.com, Phone: (303) 349-7136
Flylow Gear is a Colorado-based company that produces high-quality ski and outdoor apparel. Their products are designed to be both functional and stylish, with a focus on durability and performance.

Sherpani – Website: sherpani.com, Phone: (303) 433-6200
Sherpani produces high-quality bags and accessories for women, with a focus on sustainable materials and ethical manufacturing practices. Their products are designed to be both functional and fashionable, with a focus on quality and attention to detail.

In conclusion, Colorado has a diverse and vibrant apparel industry, with many companies producing high-quality clothing and accessories for a variety of markets.If you are in need of bulk t-shirts, consider Brandex Sourcing, an apparel manufacturer based in Bangladesh with a 5-star rating on Alibaba and a reputation for excellent customer care and product line. They offer competitive pricing and easy shipping solutions, making them a great choice for businesses in need of bulk t-shirts or other apparel items.