Anatomically engineered for an optimized female specific fit, and packed with a host of innovative safety and protective features
Stella SMX-6 v3 is the ultimate track and performance riding all-rounder, and incorporates race-derived technology and materials to give riders a crucial performance edge on the track, and street
Female dedicated fit for optimum comfort
Advanced microfiber upper construction for lightweight high performance protection against abrasion and superb levels of flexibility
Front flex and back flexion zones are constructed with textile over-injected with a soft Thermoplastic Polyurethane (TPU) for enhanced impact abrasion while also promoting a natural forwards and backwards movement
Alpinestars unique ankle brace protection system provides a bio-mechanical support and protection between lateral top calf, shin and ankle, for superior ankle articulation, while also limiting hyper-torsion, hyper-extension and hyper-flexion, as well as providing Achilles and ankle impact protection
Alpinestars Lace-Lock System is constructed from an advanced polymer resin for a guaranteed quick, precise and secure closure
Equipped with TPU shifter zone for superior protection on the lower medial side
Strategically positioned, race-derived TPU shin plate protector delivers superior impact and abrasion resistance
Dual density TPU ankle protectors are strategically positioned between the upper and padded lining to provide the strategic protection in key areas
Replaceable, dual density TPU toe slider with screw-in assembly provides comprehensive protective coverage around the outer toe area while still being supremely flexible for walking comfort
Replaceable heel slider and external side heel slider are strategically positioned for optimum shock dissipation and absorption, while promoting sliding in the event of an accident
This part is subject to an advertising policy Out of stock
Product details and identifiers
Distributor part
Manufacturer part
UPC / EAN
Package
3404-1713
2223125-12-36
8059347396385
4.6 lb; 18 × 14 × 5.25 in
3404-1714
2223125-12-37
8059347396392
4.7 lb; 18 × 14 × 5 in
3404-1715
2223125-12-38
8059347396408
4.7 lb; 18 × 14 × 5 in
3404-1716
2223125-12-39
8059347396415
4.8 lb; 18 × 14 × 5 in
3404-1717
2223125-12-40
8059347396422
4.85 lb; 18 × 14 × 5 in
3404-1718
2223125-12-41
8059347396439
5.25 lb; 20 × 14 × 5 in
3404-1719
2223125-12-42
8059347391212
5.35 lb; 20 × 14 × 5 in
3404-1720
2223125-12-43
8059347396446
5.35 lb; 20 × 14 × 5 in
3404-1721
2223125-1832-36
8059347396453
4.6 lb; 17.75 × 14 × 5 in
3404-1722
2223125-1832-37
8059347396460
4.7 lb; 17.75 × 14 × 5 in
3404-1723
2223125-1832-38
8059347396477
4.65 lb; 18 × 14 × 5 in
3404-1724
2223125-1832-39
8059347396484
4.8 lb; 18 × 14 × 5 in
3404-1725
2223125-1832-40
8059347396491
4.8 lb; 18 × 14 × 5 in
3404-1726
2223125-1832-41
8059347396507
5.25 lb; 20 × 14 × 5 in
3404-1727
2223125-1832-42
8059347391137
5.25 lb; 20 × 14 × 5 in
3404-1728
2223125-1832-43
8059347396514
5.3 lb; 20 × 14 × 5 in
Features
Anatomically engineered for an optimized female specific fit, and packed with a host of innovative safety and protective features
Stella SMX-6 v3 is the ultimate track and performance riding all-rounder, and incorporates race-derived technology and materials to give riders a crucial performance edge on the track, and street
Female dedicated fit for optimum comfort
Advanced microfiber upper construction for lightweight high performance protection against abrasion and superb levels of flexibility
Front flex and back flexion zones are constructed with textile over-injected with a soft Thermoplastic Polyurethane (TPU) for enhanced impact abrasion while also promoting a natural forwards and backwards movement
Alpinestars unique ankle brace protection system provides a bio-mechanical support and protection between lateral top calf, shin and ankle, for superior ankle articulation, while also limiting hyper-torsion, hyper-extension and hyper-flexion, as well as providing Achilles and ankle impact protection
Alpinestars Lace-Lock System is constructed from an advanced polymer resin for a guaranteed quick, precise and secure closure
Equipped with TPU shifter zone for superior protection on the lower medial side
Strategically positioned, race-derived TPU shin plate protector delivers superior impact and abrasion resistance
Dual density TPU ankle protectors are strategically positioned between the upper and padded lining to provide the strategic protection in key areas
Replaceable, dual density TPU toe slider with screw-in assembly provides comprehensive protective coverage around the outer toe area while still being supremely flexible for walking comfort
Replaceable heel slider and external side heel slider are strategically positioned for optimum shock dissipation and absorption, while promoting sliding in the event of an accident
Specifications
Product Name
BOOTS
Model
STELLA SMX-6 V3
Size Group
ADULT
Fit
OVER-CALF
Units
PAIR
Base Color
BLACK
Compatibility
No source-backed vehicle application table is provided for this product. Confirm the exact part number and application requirements before ordering.
References
26 PU HELMET & APPAREL / Page 883
Notes and disclosures
Compatibility has not been inferred from the title or product type. Confirm the exact part number and intended application before ordering.
Choose the right fit
Sizing & fit
Choose the exact size and color in the options above. Fit varies between brands and product lines.
Check the product size chart when provided. If you need help, share your measurements and the product SKU with us. Vehicle selection is not needed for this apparel product.
Before you order
Shipping & returns
01
Shipping rates & timing
Eligible standard U.S. orders ship free at $100+. Below $50: $19.95; $50–$99.99: $12.95. Standard transit is usually 3–5 business days after shipment. Processing and special-order timing vary. Checkout confirms the rate. Alaska, Hawaii and Puerto Rico are excluded.
Eligible items must be unused, uninstalled and in their original condition and packaging. Request approval within 30 days of delivery. Ordinary return shipping is your responsibility; exclusions apply.
Complete your order through Shopify. Available payment methods and any installment eligibility are shown at checkout.
Good to know
Common questions
A few answers before you place your order.
How do I know I'm choosing the right fit?
Choose the exact size and color above. Brand sizing can vary; ask our team for the correct sizing information if a size chart isn't provided. Check compatibility details.
Does it include everything shown in the photos?
Use the product description and included-items list to confirm the contents. Reference photos may show optional accessories or another finish. If contents or quantities aren't specified, ask us before purchasing. See product details
When will my order arrive?
Availability is not a delivery-date guarantee. Orders may ship from Parts4Motorcycles, a distributor or the manufacturer. Standard U.S. transit is usually 3–5 business days after shipment; processing and special-order lead times are additional. Contact us if you need the item by a specific date. Email our team
Can I exchange it if I choose the wrong option?
We don't offer direct exchanges. For eligible unused items, request a return within 30 days of delivery, then place a new order for the correct option. Return approval and the policy exclusions apply. Read return policy