Evoke Callisto Hat Liner 56cm/9mm

All Callisto helmets are individually centimetre sized using the Callisto helmet liner and the corresponding helmet size best suited to your needs :

• Small – liners available from 53-55cm
• Medium – liners available from 56-58cm
• Large – liners available from 59-61cm

S - 53cm S - 54cm S - 55cm S - 55cm Custom (2mm)
M - 56cm M - 56cm Custom (12mm) M - 56cm Custom (15mm) M - 57cmM - 58cm M - 58cm Custom (2mm)
L - 59cmL - 59cm Custom (12mm) L - 59cm Custom (15mm) L - 60cmL - 61cm

Callisto Liners are also available in different thicknesses should you be between sizes


Callisto helmet liners are available in Black, Navy or Metallic Navy to best match your helmet of choice.

Our plush, removable, washable, and replaceable liner, ensures superior wicking and cushioning for comfort and easy maintenance.

All Callisto liners are available from 53-63cm, come in Black / Navy / Metallic Navy and feature our signature evoke padded nape.


A properly fitted helmet is essential to riding safely. It is important to think about the type of riding you’ll be doing – is this hat suitable for the discipline you pursue? To ensure optimum safety, we would strongly advise having your hat professionally fitted before use. We offer a hat fitting service when purchasing a riding hat from our Retford Saddlery Store



Email: sales@retfordsaddlery.co.uk
Telephone: 01777 229195

Standard UK mainland delivery from £4.95

Delivery to UK, Isle of Man & Channel Islands.

We offer several delivery services and the delivery charge will be displayed to you when processing your order and payment.

Oversize items such as saddles will incur a surcharge based on weight which will be added and displayed at checkout.

For full Delivery details please view our Delivery Information Page