Matumbo refers to the Nike Zoom Matumbo, a
track shoe made by Nike for elite distance runners racing the 3,000 to 10,000 meter in competitions.
Nike named the shoes the Zoom Matumbo after Bernard Lagat, a US elite distance
runner, said that the hole in the back of the spikes reminded him of a Matumbo, which in his native African language means the best part of the goat.
Nike's Product description:
The Zoom Matumbo is the lightest distance
spike Nike has ever made for the very best distance runners in the
world. High strength Flywire technology works to minimize overlays and maximizes strength and durability of the
spike. Lightweight Flashion midsole foam provides great arch support and protection over any distance. Horseshoe Pebax® plate with four removeable pins. Sharkskin heel pad delivers added traction and reduce weight. Wt. 3.4 oz.