Alpinestars SP-X BOA Drystar® Boots - Black/Dark Gray
US 7.5 / EU 41
$419.95
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- Waterproof and breathable Drystar® membrane guarantees exceptional wet weather performance
- Design of shift pad features TPU technologies for superior upper foot protection
- Internal shin reinforcement is layered under the upper for impact protection in a critical area
In stock — dispatched in 1–2 business days
Estimated delivery
Ways to pay
- Shop Pay Installments — 4 interest-free payments on orders $50–$999.99, or pay monthly.
- Afterpay — 4 interest-free payments, generally over six weeks.
Also credit and debit cards, PayPal, Cash App Pay, Apple Pay and Google Pay. Choose how to pay at checkout.
Installments are subject to approval.
- FreeUS shipping on this item
- 90-dayreturns, no restocking fee
- GenuineAlpinestars, authorized dealer
Not sure about your size?
Check the size guide below, or send us the size you usually wear and a specialist at the dealership helps you pick the right one. No charge, no obligation.
See the size guide ↓
Ask a specialist →
Need help?
Not sure which size to order? Call the parts counter at Riders Miami Motorsports and we help you pick.
Tap to call · +1 645-239-3174Product details
- Ergonomically optimized touring design, the mid-length SP-X Boa Drystar® Boot® is engineered to deliver the highest levels of comfort when covering big miles in the saddle
- Waterproof and breathable Drystar® membrane guarantees exceptional wet weather performance
- With its grippy, rugged sole, this boot is built to excel in all conditions and terrains, on and off the bike
- Lateral side entry system incorporates BOA Speed Lace System technology for a quick, precise, and secure closure
- Main upper is constructed with a combination of advanced microfiber, knitted mesh and co-injected Thermoplastic Polyurethane (TPU) with Lycra for the optimum blend of comfort, breathability and performance
- Equipped with a Drystar® liner for proven all-weather performance, remaining waterproof while still being highly breathable
- Rubber sole utilizes a special compound that provides textured grip and excellent absorption, and features an integrated support shank for an enhanced sole rigidity
- Sports sole design incorporates a high flex inner structure (lasting insole) for superior walking comfort
- Design of shift pad features TPU technologies for superior upper foot protection
- TPU sliders are strategically positioned on lateral toe-box and on lateral calf for optimum flexion and protection
- TPU heel counter design ensures impact protection in a critical area while also offering additional support and security
- Dual density ankle protectors are strategically positioned between the upper and padded lining to provide strategic protection in key areas
- Internal shin reinforcement is layered under the upper for impact protection in a critical area
| Brand | ALPINESTARS |
|---|---|
| Category | Footwear |
| Size | US 7.5 / EU 41, US 8 / EU 42, US 10.5 / EU 45, US 11.5 / EU 46, US 12.5 / EU 48, US 5 / EU 38, US 6 / EU 39, US 6.5 / EU 40, US 9 / EU 43, US 9.5 / EU 44, US 12 / EU 47 |
Part numbers by option
Each size is a separate manufacturer part. Pick your size above and we ship that exact part number.
| Size | Part number | UPC | Shipping weight |
|---|---|---|---|
| US 7.5 / EU 41 | 3404-1800 | 8059347395470 | 4.4 lb |
| US 8 / EU 42 | 3404-1801 | 8059347395487 | 4.4 lb |
| US 10.5 / EU 45 | 3404-1804 | 8059347395500 | 5.0 lb |
| US 11.5 / EU 46 | 3404-1805 | 8059347395517 | 5.1 lb |
| US 12.5 / EU 48 | 3404-1807 | 8059347395531 | 5.4 lb |
| US 5 / EU 38 | 3404-1797 | 8059347395449 | 4.05 lb |
| US 6 / EU 39 | 3404-1798 | 8059347395456 | 4.15 lb |
| US 6.5 / EU 40 | 3404-1799 | 8059347395463 | 4.2 lb |
| US 9 / EU 43 | 3404-1802 | 8059347391144 | 4.6 lb |
| US 9.5 / EU 44 | 3404-1803 | 8059347395494 | 5.0 lb |
| US 12 / EU 47 | 3404-1806 | 8059347395524 | 5.3 lb |
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Free US shipping over $49
$9.95 flat rate under $49, free above it. Most orders dispatch within 1–2 business days and arrive 3–5 business days after that.
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Ships from five US warehouses
Your order leaves whichever warehouse is closest to you, which is what keeps transit times short across the country.
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Wrong size? Exchange or return it
Send it back within 90 days for a different size or a refund. It must be unworn, with all tags and labels. Return shipping is paid by the customer; there is no restocking fee.
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90-day returns, no restocking fees
Return any unused item in its original packaging within 90 days of delivery.
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Authorized dealer, genuine gear
Every item is sourced directly from the manufacturer or their authorized distributor — this one from Alpinestars.
Measure yourself, then compare with Alpinestars's own chart below. Between two sizes? Send us your measurements and a specialist tells you which size to order.
Alpinestars footwear size chart
Size conversion; JP size is your foot length in cm. This model's US and EU sizes match this table. Source: Alpinestars' official footwear size charts (alpinestars.com).
| US | EU | JP / foot length |
|---|---|---|
| 3.5 | 36 | 22.5 cm |
| 4 | 37 | 23 cm |
| 5 | 38 | 24 cm |
| 6 | 39 | 25 cm |
| 6.5 | 40 | 25.5 cm |
| 7.5 | 41 | 26 cm |
| 8 | 42 | 26.5 cm |
| 9 | 43 | 27.5 cm |
| 9.5 | 44 | 28.5 cm |
| 10.5 | 45 | 29.5 cm |
| 11.5 | 46 | 30 cm |
| 12 | 47 | 30.5 cm |
| 12.5 | 48 | 31.5 cm |
| 13.5 | 49 | 32 cm |
| 14 | 50 | 33 cm |
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Why buy from Riders Miami
Riders Parts is the parts counter of Riders Miami Motorsports — a full motorcycle dealership in North Miami Beach with a showroom and a service department. Not sure about a size? The team at the parts counter helps you pick one before you order.
Visit the dealership (opens in a new tab)- A real dealership Riders Miami Motorsports: showroom and service department at 1926 NE 154th St, North Miami Beach, FL.
- Ships from 5 US warehouses Dispatched from whichever of our five US warehouses is closest to you, in 1–2 business days.
- Help with sizing Send the size you wear in another brand, or your measurements, and we tell you which size to order.
- Talk to a person +1 645-239-3174 · parts@ridersmiami.com · Mon–Sat 9–7, Sun 10–5.