The New Balance M MXM100LK FuelCell Trainer is a sleek, performance-minded cross‑training shoe engineered for versatility—from gym floors to turf and concrete. It features a lightweight engineered knit mesh upper with Fit Weave that offers supportive structure without bulk, wrapped in a bootie-style collar with an Ariaprene tongue for a snug, sock‑like fit. The streamlined profile is enhanced by no‑sew overlays and a corded eyerow that allows for a secure, personalized lace fit. Underfoot, the FuelCell foam midsole delivers a propulsive, energized feel to drive movement forward, while a forefoot outrigger adds lateral stability during dynamic activities. Completing the package is a lightweight solid rubber outsole equipped with multi‑directional reaction‑diffusion tread and conical forefoot lugs, offering traction and durability across diverse surfaces.