The side is made from 80% PET and 20% Spandex and the back is made from 66

The inside of the flap is made from exterior material (so when folded up it's protected against the weather/sun) this does mean if you leave it down

Plush Mid-Density EVA Foam

Material: High torque

The custom 8-speed chain is built for abuse

Fox Frequency Short Sleeve Tech Tee - XL - Black PDP|PLP|Rail Material The side is made fromDesigned to provide style with quick drying comfort and high performance Tune in to this iconic style signal. The Frequency Tech Tee combines three shirt essentialsquick drying comfort, high performance, and easy style. Constructed from quick drying TruDri fabric that wicks that sweat right off your body to keep you cool, it features an eye catching Fox logo graphic that'll make it an instant, hard wearing fave in your collection. Specifications