The Zandstra Long Track III 3550 folding skate is a men's speed skating shoe designed for high performance on both artificial and natural ice. The model features a low-cut semi-soft shoe variant with special ankle padding for improved grip and stability. The patented tube-frame connection ensures a flat profile and optimal movement comfort. The closure system combines laces with a power strap and micro-adjustment, allowing for personalized fit adjustments. The blade is made of rust-resistant tool steel with a hardness of 60 Rc and a thickness of 1.25 mm for durability and consistent performance. The blade has a 25-meter radius for smooth gliding. Available in black and sizes 34 to 47, this skate is designed for reliability and precision in winter sports.