Mountain bike shorts built for durability Our Defend Pro Shorts take the already trusted durability of the Defend line and bump it up another notch. While TruMotion all-way stretch fabric will keep you agile on the climb and covered on the descent, the large Cordura hip panels provide additional abrasion resistance for even more peace of mind. Moisture management is handled via TruDri, which moves dampness away from your body as you’re sweating it out on climbs, and the durable DWR finish helps to shed moisture, dirt, and debris.