The upper is made of durable and waterproof leather and nubuck and the leg is made of water-repellent fabric, the fastening mechanism is the new BOA® M4. The lining is breathable and waterproof Gore-Tex® Sportive, the insole is a Dual Comfort insole that reduces shock and load, with a shock-absorbing cushion both in the heel and under the butt. A reflective loop on the back adds security. Sievi Spike shoes have a completely renewed and patented stud mechanism integrated into the sole structure, which allows the studs to be turned in and out easily, without taking the shoes off.
Safety class EN ISO 20345: SB SRC A P FO CI WRU
Toe protection – steel
Nail guard – steel
Sole material 1-layer PU
Surface material PU leather, chrome leather
BOA® strap length 85 cm