Giro Cipher Bike Helmet

The Cipher and Sanction 2 are both full face helmets designed for adult mountain biking, with options for men's and women's fits. While neither helmet includes MIPS technology, the Cipher offers a broader range of colors and an additional use case for BMX and dirt biking, making it more versatile for different terrains. The Cipher also provides a more extensive size selection, including a one size option, compared to the Sanction 2's fixed sizes. Both helmets cater to serious riders, but those looking for more color variety or cross-discipline use may prefer the Cipher. Conversely, the Sanction 2 focuses solely on mountain biking with a slightly more limited color palette and size range.