Anatomic Trunk

127 reviews
$38.00

Zero seams. Anatomical 3D pouch. MicroModal Air fabric that feels like a second skin.

The Anatomic Trunk is where it all started — prototype 47, the one Erik finally approved after 14 months of testing. The seamless bonded construction eliminates every friction point. The three-dimensional ergonomic pouch provides natural anatomical support without compression. MicroModal Air fabric derived from Austrian beech trees delivers unmatched softness, breathability, and temperature regulation. Machine wash cold. Tumble dry low.

Free shipping on orders over $50.00. Standard delivery in 3-5 business days.

Free returns within 30 days. Items must be unworn with tags attached.

Machine wash cold with like colors. Do not bleach. Tumble dry low. Do not iron.

Customer Reviews

4.8
Based on 127 reviews
Jan 18, 2026

Game changer

Best underwear I've ever owned. The 3D pouch is a game changer — I can't go back to regular underwear. Ordered 3 more pairs immediately.

Jan 12, 2026

Zero chafing, finally

Incredibly soft fabric and zero chafing. Wore them for a 12-hour day with no issues at all. The micro-modal is noticeably cooler than cotton.

Dec 28, 2025

Great quality, want more colors

Great quality and super comfortable. Only reason for 4 stars is I wish they came in more colors. The deep navy is fantastic though.