MK17 Heartbreaker Iron Man Helmet

The MK17 Heartbreaker — the Mark 17 (Mark XVII) — is our most refined wearable Iron Man helmet. Its motorized faceplate drops an open jaw on command, the LED eyes and side lights are brighter than on our earlier helmets, and it comes in four finishes, including the matte-black Dark Edition. Like all our helmets, it fits most adult heads from 55 to 62 cm.

The Open-Jaw Faceplate

Where the MK5 splits into panels and the MK50 lifts one solid faceplate, the Heartbreaker's jaw drops open — the most distinctive motion of the three. High-torque micro motors (2.5 N·cm each) move the faceplate quickly and smoothly, without stalling.

Voice, Touch and Remote Control

Voice commands

• "JARVIS, start system" / "Shut down system"
• "Open the suit" / "Close the suit"
• "Start combat mode" / "Close combat mode"
• "Backup power on" / "Backup power off"

Touch sensors

• Right ear sensor: fully opens the helmet
• Left ear sensor: opens the front faceplate

Remote control

• Button A: opens or closes only the front faceplate
• Button B: opens or closes the whole helmet
• Button C: changes eye colour
• Button D: turns eye lighting on or off
• Button E: turns side lighting on or off

Brighter LED Eyes and Side Lights

The eye lenses and ear lights are brighter and sharper than on our earlier helmets, so they read clearly even in daylight photos.

Four Finishes, Including Dark Edition

• Classic Gold × Red
• Silver × Red
• Silver × Black
• Dark Edition: matte black for a stealth display

What Changed from the MK5

The MK17 was rebuilt from two years of MK5 and MK50 owner feedback. It has a reinforced, multi-layer ABS shell with a smoother metallic finish, a quicker faceplate, brighter LEDs, more forgiving electronics that work on standard batteries, and a slightly larger, more screen-accurate profile that fits adult heads better. Compared with the MK5, it's about 12% lighter (~1,130 g vs ~1,280 g), runs roughly twice as long on a set of batteries (~8 hours vs ~4), and opens faster (1.2 s vs 1.8 s). See the full breakdown in our MK17 Heartbreaker review and MK5 vs MK50 vs MK17 comparison.

Built to Wear: Fit and Comfort

A stabilized internal frame and memory-foam padding keep the weight balanced. It fits head circumferences of 55–62 cm (21.7–24.4 in) — see the helmet size guide. You can see through the eyes and walk around normally, though visibility isn't perfect. If the batteries run out while it's closed, backup power lets you open it by hand.

Specifications

• Size: 19.5 × 32 × 23 cm (7.7 × 12.6 × 9.1 in)
• Weight: ~1,130 g (40 oz)
• Materials: reinforced ABS and PC, metal, electronics, cotton lining
• Power: 4× AA (helmet), 1× AAA (remote)
• Battery life: ~8 hours
• Head size: 55–62 cm (21.7–24.4 in)

What It Is — and What It Isn't

This is a collectible and cosplay piece. It is not protective gear and it is not DOT certified, so it must not be worn on a motorcycle, scooter or anything that moves — read our Iron Man motorcycle helmet guide for why. It's a fan-made replica, not an officially licensed product.

Shipping, Returns and Warranty

Shipping is currently free. Standard delivery takes 10–22 business days; express shipping is paused for now, so if you're buying for a date, order early. Questions about your order? Email support@heroslash.com or DM us your order number and our team will check it personally — and keep an eye on your spam folder, as our replies sometimes land there.

You can return it within 30 days of delivery in its original packaging, and refunds go back to your original payment method.

Guides: MK17 Heartbreaker review · MK5 vs MK50 vs MK17 · helmet size guide