Gravity Defyer - Sierra. Color Brown/Black. Low Stock. On sale for $157.50. MSRP $175.00.. 4.0 out of 5 stars3 left in stockBrand NameGravity DefyerProduct NameSierraColorBrown/BlackPrice$157.50MSRP: $175.00Rating4Rated 4 stars out of 5(2)