What does Threadborne Siro even mean? Pure, unadulterated comfort. It’s lighter, more breathable, stretches, and recovers better than anything you’ve ever felt.
Loose: Generous, more relaxed fit.
Soft, super-lightweight fabrication offers superior airflow for a cooler feel
Elevated construction delivers amazing multi-directional stretch & recovery
Quick-dry for all-day comfort
½ zip collar for easy layering
Thumbholes keep sleeves secure
Shaped drop-tail hem for extra coverage
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