Asics Gel-Kayano 31 - GS
Asics Gel-Kayano 31 - GS
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Free Shipping
On orders over $200
Same-Day Dispatch
Order before 12pm, Mon–Fri
Flexible Payments
Afterpay and all major payment methods accepted
30-Day Returns
Easy returns and exchanges within 30 days
The GEL-KAYANO™ 31 GS (Grade School) shoe creates a stable and comfortable underfoot experience for young feet.
We also updated the midsole with FF BLAST™ PLUS ECO cushioning. With approximately 24% bio-based content, this material helps create cloud-like softness in every step.
Lastly, the toe-rubber stitching and medial forefoot wrap-up outsole help to improve the shoe's durability.
TECH & MATERIALS
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Breathable mesh upper
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Rearfoot PureGEL™ technology helps provide lightweight cushioning and softer landings
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FF BLAST™ PLUS ECO cushioning is made with approximately 24% bio-based content and helps provide cloud-like comfort
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An ASICS SIZE CHECKER™ feature helps kids identify when they’re outgrowing their shoes
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At least 50% of the shoe's main upper material is made with recycled content to reduce waste and carbon emissions
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The sockliner is produced with the solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45% compared to the conventional dyeing technology
Size Guide
All SBR shoe sizes are listed in US sizing. Conversions are a general guide and may vary between brands.
Men's Shoe Sizes
| US | UK | EU | CM |
|---|---|---|---|
| 4 | 3 | 36 | 22.5 |
| 4.5 | 3.5 | 37 | 23 |
| 5 | 4 | 37.5 | 23.5 |
| 5.5 | 4.5 | 38 | 24 |
| 6 | 5 | 39 | 24.5 |
| 6.5 | 5.5 | 39.5 | 25 |
| 7 | 6 | 40 | 25.5 |
| 7.5 | 6.5 | 40.5 | 25.75 |
| 8 | 7 | 41.5 | 26 |
| 8.5 | 7.5 | 42 | 26.5 |
| 9 | 8 | 42.5 | 27 |
| 9.5 | 8.5 | 43.5 | 27.5 |
| 10 | 9 | 44 | 28 |
| 10.5 | 9.5 | 44.5 | 28.25 |
| 11 | 10 | 45 | 28.5 |
| 11.5 | 10.5 | 46 | 29 |
| 12 | 11 | 46.5 | 29.5 |
| 12.5 | 11.5 | 47 | 30 |
| 13 | 12 | 48 | 30.5 |
| 14 | 13 | 49 | 31 |
| 15 | 14 | 50.5 | 32 |
| 16 | 15 | 51.5 | 33 |
| 17 | 16 | 53 | 34 |
Women's Shoe Sizes
| US | UK | EU | CM |
|---|---|---|---|
| 5 | 3 | 35 | 21.5 |
| 5.5 | 3.5 | 36 | 22 |
| 6 | 4 | 36.5 | 22.5 |
| 6.5 | 4.5 | 37 | 23 |
| 7 | 5 | 37.5 | 23.5 |
| 7.5 | 5.5 | 38 | 24 |
| 8 | 6 | 38.5 | 24.5 |
| 8.5 | 6.5 | 39 | 25 |
| 9 | 7 | 40 | 25.5 |
| 9.5 | 7.5 | 41 | 26 |
| 10 | 8 | 41.5 | 26.5 |
| 10.5 | 8.5 | 42 | 27 |
| 11 | 9 | 43 | 27.5 |
| 11.5 | 9.5 | 43.5 | 28 |
| 12 | 10 | 44 | 28.5 |
| 12.5 | 10.5 | 44.5 | 29 |
| 13 | 11 | 45 | 29.5 |
If you're between sizes, check the individual brand's fit guidance or contact our team for advice.
About SBR Collective
SBR Collective started in Rockingham with a simple idea: buying endurance gear should be easier when the people helping you actually use it themselves.
We’re local athletes with plenty of kilometres behind us across running, cycling and triathlon. We know how quickly shoes, equipment and technical specs can become overwhelming, so SBR was built around useful advice, a carefully selected range and recommendations grounded in how people actually train.
We don’t try to stock everything. We focus on gear we believe earns its place in your kit, from established performance brands to products we’ve tested, used and would be comfortable recommending ourselves.
Who SBR is for
For us, being an athlete covers a lot of ground.
You might be walking more, getting back into the gym, training for your first event, turning up every week for your local club or chasing a new PB. The level matters less than having a reason to move and wanting gear that suits what you’re actually doing.
That’s why the advice starts with you: how you train, what you need from the product and what feels right.
What makes SBR different
Advice based on experience
We use this gear ourselves, so recommendations are based on fit, feel, purpose and real-world use rather than a list of technical features.
A range with a reason
Our products and brands are selected around performance, suitability and where they fit into your training. More choice is only useful when it helps you make a better decision.
Local knowledge
SBR is based in Rockingham and built around the endurance community in WA. You can shop online or visit us in-store for personalised footwear advice and fitting.
Support beyond the purchase
Choosing the right gear can take some trial and error. We’re here to answer questions, help with fit and make the process easier before and after you buy.
What we're building
We want SBR Collective to be the place people come back to when they need good gear and useful advice from people who understand the gear.
Shipping & Returns
Free standard shipping
On orders over $200
Standard shipping
$10 for orders under $200
Express shipping
$15 for urgent deliveries
Same-day dispatch: All orders placed before 12pm will be dispatched the same day.
Delivering Value Without Borders
Free standard shipping on orders over $200 — same-day dispatch before 12pm.
Why we value free shipping:
We offer free shipping because we love our customers, whether they're locals or further afield. Our passion for running transcends geographical boundaries, and we believe your shopping experience should too. By eliminating shipping costs on orders over $200, we ensure that all runners can access our premium products without hidden fees or location penalties.
Free shipping reflects our commitment to building a truly inclusive running community where distance from our store never diminishes your experience with us.
Returns
For eligibility, timeframes and return conditions, please review our returns policy.
View returns policyA note from our founder
SBR started after I signed up for a half Ironman to raise money for A Stitch in Time, a local mental health charity, despite never having done a triathlon before.
Pretty quickly, I realised how confusing it was to work out what gear I actually needed and how hard it was to find useful, personal advice locally. That experience showed me there was room in Rockingham for a store built around people who genuinely use the products they recommend.
SBR Collective was created to make choosing endurance gear simpler, with practical advice, a carefully selected range and support from people who understand the training behind it. That idea still shapes how we do things today.
Customer Reviews
Hear from some of the legends who’ve shopped with us before.
Frequently Asked Questions
How do I know if this product is right for me?
If you’re unsure, send us a message or visit us in-store. Tell us what you’re using it for, what you currently use and anything you like or dislike about your existing gear. We’ll help you work out whether it makes sense for you.
Can you help with sizing and fit?
Yes. Sizing can vary between brands and products, so it’s worth checking before ordering if you’re between sizes or trying something new. Contact us for advice, or visit our Rockingham store for more personalised help.
Can I get advice before I buy?
Absolutely. SBR is run by people who actually use this gear, so if you want help comparing options, understanding a feature or deciding what suits your training, just ask.
How quickly will my order be dispatched?
Orders placed before 12pm AWST, Monday to Friday are eligible for same-day dispatch. Orders placed after the cut-off will usually be processed the next business day.
How much is shipping?
We offer free standard shipping on Australian orders over $200 . Shipping options and costs for orders under $200 are shown at checkout.
What if I need to return or exchange it?
Eligible items can be returned or exchanged within 30 days. Products need to meet our returns conditions, so we recommend checking the full returns policy before using an item if you’re unsure about the fit.
What payment methods do you accept?
We accept Afterpay and all major payment methods , with the available options shown securely at checkout.