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Firewire Boss Up 2025 Surfboard — buy at K1.surf
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Firewire Boss Up 2025 Surfboard

Firewire Boss Up 2025 — the Slater Designs midlength in I-Bolic Core. Recommended volume is +13 litres over your shortboard.

Size
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Genuine Firewire product with manufacturer's warranty · worldwide shipping — Europe, USA, Asia · payment by card or bank transfer · delivery info

Description

The 2025 Boss Up in I-Bolic Core — an I-beam core construction that holds stiffness along the length while staying responsive.

Two numbers matter here, and the maker states both. First: ride roughly 13 litres more volume than your standard shortboard. That isn't guesswork — a midlength without float margin loses its whole point, and with too much it goes stiff. Second: the recommended setup is the KS1 5-fin template configured as a quad. A quad on a midlength gives drive and hold through the arc, where a thruster would make it heavier to turn.

The brief is unchanged: one board for everything, from gutless faces to overhead tubes.

Who it isn't for. Anyone with reliably powerful surf at home and the right shortboard for it. And work the +13 litres from your own board, honestly, not somebody else's.

Specifications

BrandFirewire
TypeSurfboard
ModelBoss Up 2025
Sourcewww.firewiresurfboards.com (manufacturer's official site)
Sergey Alesenko — IKO instructor at K1
K1 instructor's take
“We ride this gear ourselves and teach on it. The main thing is picking the size for your weight and wind: bigger in light wind, smaller when it blows. If you're unsure, message us — we'll put together an honest setup, no upselling.”
Sergey Alesenko — IKO Instructor L3, founder of K1

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Frequently asked questions

How much does the Firewire Boss Up 2025 Surfboard cost?+

The Firewire Boss Up 2025 Surfboard is from 793 €. We'll confirm the price for your size and any current deals when you send a request; payment by card or invoice.

Is the Firewire Boss Up 2025 Surfboard suitable for a beginner?+

For learning, choose a board with more volume and a soft deck — it's easier to get to your feet in the wave. We'll suggest a model for your weight and experience.

How do you deliver the Firewire Boss Up 2025 Surfboard to Russia or Vietnam?+

Within Russia by CDEK; in Mui Ne pick-up at the K1 station or delivery within Vietnam. Payment by card or invoice.

Can I return the Firewire Boss Up 2025 Surfboard if it doesn't suit me?+

Yes — returns within 14 days provided the item is unused and in original condition. We help you choose before you buy so a return isn't needed; advice is free.