Evoke Callisto Classic Brim Helmet
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The Callisto is the ultimate choice for riders seeking a fusion of top-tier performance, sophisticated style, and elite safety. Designed with a slightly rounder shell shape to accommodate a wide range of riders, this lightweight ABS helmet features triple ventilation and a luxurious adjustable leather harness for all-day comfort in the saddle.
- Triple Safety-Certified: Tested to the industry's highest standards, including PAS 015:2011, ASTM F1163-23, and EN 1384 2023 for total peace of mind.
- Evoke Liner System: Utilizes a removable, moisture-wicking padded liner that allows for a precision fit and easy hygiene—simply swap liners to keep your helmet fresh.
- Superior Ventilation & Fit: Features a triple-vented lightweight shell and an adjustable 4-point leather harness for maximum airflow and a secure, soft-touch feel.
Liner Compatibility & Thickness Chart
We all know head shapes aren't one-size-fits-all. That's why Evoke created specialized custom-thickness liners to solve the most common helmet fit issues.
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Got a headache? If you're right on the edge of a size bracket (like 55cm or 58cm), swap your standard liner for the Custom 2mm option. It trims back the internal bulk just enough to give you a comfortable, pinch-free fit without stepping up to a loose shell.
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Helmet sliding or rocking? If you have a finer or more oval head shape, standard padding can leave gaps. The Custom 12mm and 15mm liners add plush, targeted thickness to firmly anchor the helmet in place.
| Helmet Shell | Target Head Size | Padding Thickness | Fit Profile |
|---|---|---|---|
| Small Shell | 53 cm | 9 mm | Standard Fit |
| 54 cm | 6 mm | Standard Fit | |
| 55 cm | 4 mm | Standard Fit | |
| 55 cm (Custom) | 2 mm | Custom (Looser Fit) | |
| Medium Shell | 56 cm (Custom) | 15 mm | Custom (Max Snug) |
| 56 cm (Custom) | 12 mm | Custom (Extra Snug) | |
| 56 cm | 9 mm | Standard Fit | |
| 57 cm | 6 mm | Standard Fit | |
| 58 cm | 4 mm | Standard Fit | |
| 58 cm (Custom) | 2 mm | Custom (Looser Fit) | |
| Large Shell | 59 cm (Custom) | 15 mm | Custom (Max Snug) |
| 59 cm (Custom) | 12 mm | Custom (Extra Snug) | |
| 59 cm | 9 mm | Standard Fit | |
| 60 cm | 6 mm | Standard Fit | |
| 61 cm | 4 mm | Standard Fit |
Note: Ensure your replacement liner matches your current outer helmet shell size (Small, Medium, or Large).





