The BSRI field crew did not discuss what they found at the bottom. The official Ninth Layer hoodie maps it anyway: the cave cross-section across the back, nine layers labeled, Layer 9 glowing where the hum gets loudest. Built for extended underground work in Bennington, VT, or wherever the layers take you. Clearance not required. We checked.

• 100% cotton face
• 65% ring-spun cotton, 35% polyester
• Front pouch pocket
• Self-fabric patch on the back
• Matching flat drawstrings
• 3-panel hood
• Blank product sourced from Pakistan

Runs small. Order one size up for a standard fit.