Shamma - TrailStars Maximus - Ultragrip (Unisex)

Regular price: $189.00
Regular price
Sale price: $189.00

Tax included. Shipping calculated at checkout.

Product variants

Size Guide

Fast, rugged, and built for precision — the Shamma TrailStars Maximus – UltraGrip (Unisex) takes minimalist performance to the next level. Designed for intense activity, these lightweight yet secure sandals excel in both the gym and the great outdoors, offering the stability and comfort you need for speed-driven adventures.

Featuring an 8mm Vibram® Newflex sole with aggressive tread, paired with a weather-ready UltraGrip footbed, the TrailStars Maximus delivers a 9mm total stack height for just the right balance of cushioning and ground feel. The durable Newflex compound blends rubber and EVA for long-lasting performance while diffusing the impact of rocks, sticks, and uneven terrain — even in the harshest conditions.

The TrailStar Lacing System provides unmatched security with an over-the-foot adjustable forefoot strap made from Toray® Ultrasuede and nylon mesh — soft against the skin but as strong as webbing. The heel section features Ultrasuede-covered posts and Velcro® adjustments for a locked-in fit, while a tension lock on the outer heel post allows quick, fine-tuned adjustments.

Features:

8mm Vibram® Newflex sole with aggressive tread for grip and durability
9mm total stack height for balanced cushioning and ground feel
UltraGrip footbed for secure traction in wet or dry conditions
TrailStar Lacing System for secure, over-the-foot fit
Adjustable forefoot strap made from Toray® Ultrasuede and nylon mesh
Ultrasuede-covered heel posts with Velcro® strap adjustments
Recraftable design — replace worn parts at home
Proudly made in the USA with quality global materials
Suitable for both men and women
Ideal for gym workouts, trail adventures, and high-intensity movement

Fast Dispatch & Express Delivery options

$1.99 Easy Returns and Instant Exchanges

Fast Delivery From $9.95
Need Help? 07 3060 8441
$1.99 Returns for AU/NZ

Specifications

Sole composition and stack height:

8mm Vibram Newflex

1mm UltraGrip or goatskin leather footbed

Total stack height of 9mm.

Weight: Approximately 4.7oz/sandal (at size 9)

SIZING & FIT GUIDE

We strongly recommend using the printable templates to check your foot size to ensure a perfect fit - CLICK HERE to access the Sizing Templates.

NOTE: Make sure your printer doesn’t resize or shrink to fit when printing! Larger sizes will need to be printed Poster across 2 sheets of paper.

To size yourself, print the template out and place your foot on the template so that the toe hole is between your big toe and first little toe. Make sure that your toes aren’t hanging off the front of the template, and that your ankles line up with the ankle slots on the sides of the sandal. If the ankle slots are under your foot a little bit, that’s ok, the laces come up and around your feet – just make sure that your toes don’t go past the front of the sandal, that your heel doesn’t go past the back of the sandal, and that the toe hole and ankle slots line up with your feet. For the best fit, we recommend choosing a sandal size that gives you between 3.2mm to 6.4mm of extra room in front of your toes and behind your heel.

SHIPPING & RETURNS

SHIPPING

We ship to Australia & NZ using Australia Post.

We offer Standard and Express Shipping options

Our standard shipping rate starts from $9.95, Australia Wide with Authority to leave.

When you give authority to leave, you are allowing our carriers to leave the package unattended at your address without a signature. Please note if you opt to leave your order unattended, Bprimal will not be responsible for any lost or stolen packages.

You can elect to have your package delivered with a signature on delivery for an additional $2 fee.

Express Shipping is also available from AU$16.95 (2-4 business days)

International Shipping is available to New Zealand from AU$19.95

All orders placed prior to Midday (AEST) will be dispatched the same day (business days Mon-Fri) with the exception of Sale Periods where we may experience up to 3 day delay for dispatch.

You will receive a tracking number and link to track your delivery once it has been dispatched.

RETURNS

If your order isn’t right for you, you can return it for a refund* or exchange within 30 days of receiving your order. Item must be unworn and in BRAND NEW condition in original box with tags still attached (if applicable). Please note that postage costs to return the item(s) to bprimal remain the customers responsibility with the exception of customers that have purchased our Free Return Guarantee.

Note: Items marked as Clearance are not eligible for return

FREE RETURN GUARANTEE

Australian & NZ customers can elect to include our $1.99 Return Guarantee at checkout, and we will provide you 1x PRE-PAID shipping label if you need to return any items to us for exchange or refund.

SIZE EXCHANGE

Shipping is free for a size exchange (one exchange per order) where we cover the postage to you for the exchange pair.

REFUND

If you are not 100% satisfied with your purchase from bprimal you can return your purchase to us for a full refund minus any postage costs. *Please note that if you have already exchanged your order, you will only be eligible for a store credit if you return the exchange item.

Care Guide

Keep your barefoot shoes looking fresh and performing their best with a little regular care.

We recommend using our Boom Cleaning Set for easy, effective cleaning. To add an extra layer of protection against water and stains, finish with our Waterproofing Spray.

Spot clean with a soft cloth or brush and Boom Cleaning Foam
Avoid machine washing or full submersion
Let shoes air dry naturally — no heat or direct sun
Use a shoe tree or stuff with paper to help keep shape
Apply waterproof spray regularly for extra protection

Re-align, strengthen, and restore your feet naturally.

Our commitment to total foot health is unwavering. We only offer products that we personally wear, love, and fully trust. We invite you to experience the difference for yourself.

Experts in Barefoot and Minimalist Footwear

We specialize in barefoot minimalist shoes and functional footwear, promoting natural foot health and function.

Commitment to Quality

We only stock the very best healthy, minimal, functional, anatomical, and barefoot footwear brands.

Wide Range of Brands

Our selection includes top brands

Natural Foot Shape Restoration

Our mission is to help you restore your feet to their natural, primal shape, reducing pain and improving overall foot health.

I love these sandals. They are very comfortable and the straps are lovely and soft. They are very straight forward to set up initially and once I got them exactly right I haven't needed to adjust them at all. Can't wait for the warmer weather!

Lovely wide toebox! Comfortable to walk in.

My feet are about 25.3cm long and 10cm wide and I’ve found the size M8/W9.5 to be good, though I could also have gone a size up.
These are flexible, adjustable, and great for hiking rocky trails in.
I don’t think they will last very long as after one summer’s wear they are already looking pretty worn out, but they are very comfortable!

Quality: Excellent

Sizing: True to Size

Second purchase from Primal

Second show from Primal, really good for day to day. The white is on point but a little annoying to keep it clean.

Sizing: Small

love the service and foot-ware from bprimal

love the service and foot-ware from bprimal. The Lems boots are the best most comfortable work boots you can get./ I call them work boots because thats what they do, however they could be the best street boots as well, they look as good as they feel.

Quality: Very Good

Was great wearing LEMS with the correct toes

Was great wearing LEMS with the correct toes , comfortable , not aware that I’m using the correct toes which is excellent , Thanks William for recommending 👍🏻