Black Hole® Duffel 100L color-halo-green SRAM's crank arm boots are

SRAM's crank arm boots are a no-brainer

Optimized for rear wheel

Certification - Complies with the US CPSC safety standard for bicycle helmet for persons age 5 and older

like WaveCel technology

Micro-Adjustable

Black Hole® Duffel 100L color-halo-green SRAM's crank arm boots areMade for extended and gear intensive travel, the Black Hole Duffel 100L lives for rugged outings. It delivers the same legendary performance you expect from our Black Hole bags, but with a huge step toward environmental impact reduction with 100% recycled body fabric, lining and webbing, and now a pioneering recycled TPU film laminate with a sleek matte finish. Made in a Fair Trade Certified factory. Patagonia Black Hole Duffel Bag 100L in Birch