Park Tool Bio Chain Brite Active Fiber content: • Shell: 57%

Fiber content: • Shell: 57% Merino Wool

•approved Grid Fleece

Innovative side seam cinch converts from capri to shorts

while the other side includes a padded back panel

The fabric helps combine the moisture management

Park Tool Bio Chain Brite Active Fiber content: • Shell: 57%Park Tool CB 4 is a 100% biodegradable, natural, plant based degreaser formulated for use in the CM 5. 3 Cyclone Chain Scrubber, CM 25 Professional Chain Scrubber, or with a scrubbing brush as a general purpose degreaser. When used with a chain cleaner, CB 4 gets bicycle chains clean inside and out so they're good as new. Will not harm alloy, plastic, rubber, or carbon fiber parts, so it's safe to use for cleaning cassettes, chainrings, pulleys, or