The GT-2000 has staying power because it's a stability shoe that never feels like one. The ASICS GT-2000 15 turns up that energy with a reimagined FF BLAST MAX midsole which uses a softer compound and adds 2 mm of extra cushioning over the previous version — so landings feel cloud-like and toe-offs delivers a springy, propulsive response. Rearfoot PureGEL technology, approximately 65% softer than standard GEL, absorbs impact at heel strike and transitions smoothly into an energetic push-off. The 3D Guidance System provides adaptive stability built into the platform geometry, responding when your stride needs it and staying out of the way when it doesn't. A new engineered woven upper keeps weight low by eliminating additional overlays, and reflective details add visibility for early morning and low-light miles. Details: Upper: Engineered woven construction for a lightweight, overlay-free fit with reflective details for low-light visibility. Midsole: FF BLAST MAX foam is softer and adds 2 mm of stack height over previous versions. The 3D Guidance System gives you smooth, adaptive stability while Rearfoot PureGEL technology delivers soft, efficient heel cushioning. Outsole: The Trampoline outsole pod gives you springy energy return at toe-off and AHARPLUS heel plug rubber provides high-durability heel protection. AHAR LO rubber in key zones adds extra grip and traction.