Helmet liners GIRO Syntax/Seyen Non-MIPS inner padding, black, size M (55–59 cm)

Replacement inner padding for GIRO Syntax and Seyen Non‑MIPS helmets in black, size M (fits head circumference 55–59 cm). These helmet liners are designed to restore original fit and cushioning, offering breathable comfort and sweat absorption for everyday cycling, commuting and recreational rides. Made to match the shape and attachment points of the original Giro interior, the liners provide a straightforward swap to maintain helmet performance and on‑head stability.

Advantages

These black replacement liners provide a close fit for medium heads, improving contact between the helmet shell and the wearer’s head. The padding materials balance cushioning and airflow to reduce pressure points and manage moisture during use. As direct-fit replacements, they simplify maintenance and extend the usable life of the helmet without modifying its external structure.

Suitable for

• Everyday cycling and commuting
• Recreational and city rides
• Replacing worn or damaged interior padding
• Improving fit for head circumference 55–59 cm

Key specifications

• Compatibility: GIRO Syntax and Seyen Non‑MIPS helmet interiors
• Size: Medium, fits 55–59 cm head circumference
• Color: Black
• Material properties: cushioning foam with moisture‑wicking fabric cover
• Attachment: designed for original Giro liner mounting points

How to use

Remove the old liner by detaching it from the helmet’s interior attachment points and clean the helmet shell if necessary. Align the replacement liner with the helmet’s mounting points and press into place until all clips or fasteners engage securely. Check that the liner sits evenly and that straps and adjustment systems function correctly before wearing. Follow any manufacturer guidance for care and reattachment to ensure secure installation.

Usage recommendations

For best results, inspect liners periodically for compression or wear and replace them when cushioning or sweat absorption declines. Wash fabric covers according to manufacturer instructions and allow complete drying before reinstallation. Replace liners with the specified size to maintain proper fit and safety characteristics of the helmet.