ALPINESTARS Tech 7 Enduro Drystar® Boots - Black/Gray/Gold - US 8 2012620-1959-8 Grease 4D – 4-Channel Class D

4D – 4-Channel Class D Amplifier

Designed for sealed and ported boxes

easy to operate

3L Load Configuration Front Ported Box Material 1/2" MDF Finish Material Vinyl Measurements Height 13

8TI builds on the elegance of the PRO-TWX3

ALPINESTARS Tech 7 Enduro Drystar® Boots - Black/Gray/Gold - US 8 2012620-1959-8 Grease 4D – 4-Channel Class DUpper constructed from innovative microfiber material that is flexible and abrasion resistant Innovative, evolutionary TPU shin plate construction for a greater range of fitment Shin plate features a reinforced hook and loop closure for a comfortable, customized fit Shin zone incorporates a TPU blade system engineered to prevent frontal hyper extension and offer greater flex control Specially designed sole provides enduro riders with superior grip,