The liner has a stylised finish and comfort check pads that vary in thickness according to helmet size. While the liners are extremely durable, they are also easily exchangeable.

Cookie M3 liners come in the following sizes:

• XS (53 – 54 cm / 20¾ – 21¼ inches)
• SM (54 – 56 cm /21¼ – 22 inches)
• M (56 – 57 cm / 22 – 22½ inches)
• L (57 – 59 cm / 22½ – 23¼ inches)
• XL (59 – 60 cm / 23¼ – 23¾ inches)
• XXL (60 – 62 cm / 23¾ – 24½ inches)