Mount Bross T-Shirt – 303 Threads | Colorado 14er Benchmark Tee
High altitude, historic grit, and classic Colorado energy. The Mount Bross t-shirt by 303 Threads celebrates one of the most recognizable and debated Colorado 14ers, a peak that proves bagging mountains is about the journey, the views, and the story you bring home.
Reaching 14,178 feet, Mount Bross sits high in Colorado’s legendary mining country and delivers wide-open alpine views that make every step worth it. This premium Colorado mountain t-shirt is inspired by the authentic benchmark marker found at the summit, redesigned in a clean, modern style that features the elevation and GPS coordinates, a subtle nod to those who know exactly where they stood above it all.
Whether Bross was part of a classic four-peak day, a personal milestone, or a key stop on your growing 14er list, this tee honors what we do in the 303: get outside, go higher, and keep chasing summits.
From rocky slopes to summit photos to post-hike celebrations, this shirt is a wearable badge of honor, because in Colorado, the climb is always part of the story.
• 100% combed and ring-spun cotton (Heather colors contain polyester)
• Fabric weight: 4.2 oz./yd.² (142 g/m²)
• Pre-shrunk fabric
• Side-seamed construction
• Shoulder-to-shoulder taping
• Blank product sourced from Nicaragua, Mexico, Honduras, or the US
Disclaimer: The fabric is slightly sheer and may appear see-through, especially in lighter colors or under certain lighting conditions.
This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

















