Overview The Megablast is Asics' max-stack plateless super trainer — a full-length FF Turbo² midsole (A-TPU blend) under 225 g at a 45 mm stack. Asics cites FF Turbo² at ~32.5% bouncier, ~9.6% softer and ~2.8% lighter than FF Turbo+. Superblast geometry refined: daily miles for runners who want plateless propulsion in a lighter package, long runs, recovery, easy-to-tempo. Details Best for: Long runs at aerobic to marathon-pace effort Easy miles and recovery days on a plateless super-foam ride Half-marathon race day for runners who prefer plateless Daily super-trainer slot for high-mileage runners Rotation with Superblast or a plated racer Specs: 8 mm drop, 45 / 37 mm stack, ~224 g FF Turbo² full-length, A-TPU blend foam No plate, plateless super trainer Asics cites FF Turbo² at ~32.5% more rebound, ~9.6% softer, ~2.8% lighter than FF Turbo+ Engineered-mesh upper Max-stack plateless super trainer, under 225 g at 45 mm stack Colourway: White / Piedmont Grey, Black / White Sizing: M4.5/W6 / M5/W6.5 / M5.5/W7 / M6/W7.5 / M6.5/W8 / M7/W8.5 / M7.5/W9 / M8/W9.5 / M8.5/W10 / M9/W10.5 / M9.5/W11 / M10/W11.5 / M10.5/W12 / M11/W12.5 / M11.5/W13 / M12/W13.5 Materials & Care Remove insoles and loosen laces after wet or muddy sessions and air-dry away from direct heat (no radiators, no dryers). Hand-clean uppers with cold water and a soft brush; use a mild detergent only if needed. Do not machine-wash, it degrades adhesives, compresses the midsole foam, and shortens the life of FF Turbo+, FF Turbo² and FF Leap super foams. Do not tumble dry, bleach or dry clean. Rotate between two pairs where possible, PEBA / A-TPU super foams rebound better when given 24 hours to recover between runs. Store at room temperature out of direct sun; heat and UV accelerate foam breakdown. Keep Gore-Tex models clean on the upper to maintain breathability; reproof the face fabric with a water-based DWR when water stops beading. Bundle & Save Build a bundle and save up to 10% off. Shop Bundle Builder
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