Level 1 Certified Hip & Sacrum Protection Undershorts

The Bluegrass Arto Undershorts are built for DH, Enduro, and BMX riders who want meaningful impact protection without a chamois pad getting in the way. Designed to be worn under long DH pants, these shorts deliver Level 1 Type B certified hip protection alongside additional EVA foam inserts covering the sacrum and legs.

What They Do

Level 1 Type B certified hip protection for MTB use
EVA foam inserts shaped to ergonomically fit the sacrum and legs
No chamois — built purely around protection coverage
Open mesh weave across the majority of the leg panels for ventilation and quick drying
Silicone printed grippers on the elastic waistband and lower thigh for a stable, non-shifting fit under DH pants
Upper hip protectors positioned to sit comfortably under riding kit without interference

Why Torque Collective Stock This

Most base layers make you choose between comfort padding and impact protection. The Arto drops the chamois entirely and focuses on what matters for lift-accessed DH and big Enduro days: certified hip and sacrum coverage that stays in place. For riders who already have a comfortable saddle setup and want a dedicated protection layer under their DH trousers, this is a practical and specific solution worth stocking.

Sizing Guide

Available in Small, Medium, Large, and X-Large. No official size chart was available at time of listing. We recommend checking Bluegrass's current size guide or contacting Torque Collective before ordering if you are between sizes, as fit under DH pants is important for pad placement and stability.

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