Adidas X Speedportal.1SG unlocks speed in all its dimensions. Lightweight and foot-hugging, the updated Speedskin upper on the adidas X Speedportal.1 has a stretchy adidas PRIMEKNIT collar and a carbon heel lock and stability fins for a secure fit at high speeds. Two extra forefoot studs on the Speedframe soleplate help boost your acceleration. Midfoot support cage and carbon heel lock adidas PRIMEKNIT collar Stability wings to offer high-speed lockdown and support Soft Ground (SG) soleplate, designed for use on Wet/Muddy Natural Grass Pitches.