Fjallraven keb trekking cap flexible hiking cap with a short stiff brim excellent fit with stretch fabric at the sides and g 1000 eco for the brim and mid section light flexible cap for trekking combined g 1000 eco in recycled polyester and organic cotton in the brim and mid section with stretch fabric at the sides for the perfect fit without needing drawcords or other adjustments short stiff brim protects from the sun and is also practical in wet weather to keep rain out of eyes lit