Dr. Martens Kid's Collection - Sinclair Bex (Big Kid). Color Black. Low Stock. On sale for $90.30. MSRP $105.00.. 5.0 out of 5 starsAdd to favorites. 0 people have favorited this5 left in stockBrand NameDr. Martens Kid's CollectionProduct NameSinclair Bex (Big Kid)ColorBlackPrice$90.30MSRP: $105.00Rating5Rated 5 stars out of 5(1)