Brooks - Hyperion. Color Oyster Mushroom/Black Iris. On sale for $109.95. MSRP $140.00.. 4.4 out of 5 stars+6Brand NameBrooksProduct NameHyperionColorOyster Mushroom/Black IrisPrice$109.95MSRP: $140.00Rating4Rated 4 stars out of 5(19)