SPIN stands for “Shear Padding Inside.” Like MIPS, which stands for “Multi-Directional Impact Protection System,” SPIN is used extensively in POC Helmets. Both MIPS and SPIN helmet technology are used to protect against the effects of oblique or rotational impact injuries, which can cause brain trauma. POC uses both MIPS and SPIN technology in their designs, although SPIN is their own in-house variation and is used mostly in the cycling helmets they offer.