PUMA Trinomic Sock x Stampd NM Mens in Black/Black Leather A special collaboration with clothing brand Stamp'd. A new slip on creation that features the 1990's Trinomic style running sole made famous on the Puma Disc series as well as others. The Trinomic Sock features co-branded outer tongue with premium soft leather, mesh, and textile execution. A futuristic slip on to say the least. All sizes are listed in U.S. Mens sizes.