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1% of ALL SALES go to 1% For The Planet partners

Australian born, globally worn.

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M-NEPTUNE Running Cap, front view
Underside of M-NEPTUNE Running Cap peak
M-NEPTUNE Running Cap, angle view
Runner wearing M-NEPTUNE Running Cap outdoors
M-NEPTUNE Running Cap, side view
M-NEPTUNE Running Cap, back view
Runner wearing M-NEPTUNE Running Cap outdoors
M-NEPTUNE Running Cap, front view
Underside of M-NEPTUNE Running Cap peak
M-NEPTUNE Running Cap, angle view
Runner wearing M-NEPTUNE Running Cap outdoors
M-NEPTUNE Running Cap, side view
M-NEPTUNE Running Cap, back view
Runner wearing M-NEPTUNE Running Cap outdoors

M-NEPTUNE Running Cap

M-Series Core

$40.00
Close-up of Fractel's REPREVE recycled fabric
Repreve® - 100% RECYCLED POLYESTER - More info

A cap that works on the start line and just as well on the walk home after.

The M-Neptune is Fractel's REPREVE running cap in navy. REPREVE replaces first-use polyester with recycled fibre, keeping the build light and breathable through a warm session.

  • REPREVE recycled fibre: replaces first-use polyester, cuts waste-water and crude oil use, and keeps the build light and breathable
  • Pliable peak: folds flat for the bag, holds its shape when it's out
  • Quick-adjust rear strap: sized to sit secure on a smaller head or a larger one, so fit isn't a guess before you buy

Explore the whole M-Series lineup, part of our wider running caps range.

Colour: NEPTUNE

M-Core
Fractel Jet Edition Running Cap, front
M-ARIZONA Running Cap, front view
White cap with 'FRACTEL' logo on a white background
M-NEPTUNE Running Cap, front view
Fractel Midnight 3.0 Running Cap, front
M-SAHARA Running Cap, front view
M-OCEAN Running Cap, front view
Fractel M-Earth running cap, front view
M-ROSETTE Running Cap, front view
Fractel Straw Edition Running Cap, front
M-SAND Running Cap, front view
M-Premium
M-NEPTUNE Running Cap
Fractel M-NOVA Running Cap, angled view
Fractel M-EXOPLANET Running Cap, angled view
Fractel M-ORBIT Running Cap, angled view
Beige cap with mesh back and giraffe pattern on visor against a white background
M-Seasonal
Fractel M-COSMOS Running Cap, angled view
Fractel M-Ngurrumbaa Limited Edition Running Cap in orange, angled view
Fractel M-Alba running cap, front view
Fractel M-Ngurrumbaa Limited Edition Running Cap in brown, angled view
Fractel M-SOLARFLARE Running Cap, angled view
Fractel M-PULSAR Running Cap, angled view
Fractel M-Heartbreak - Limited Edition Running Cap, angled view
Accessory Size
Find your fit
M-NEPTUNE Running Cap

Lifetime Warranty

M-NEPTUNE Running Cap

AfterPay

M-NEPTUNE Running Cap

Australian Owned

M-NEPTUNE Running Cap

Free Shipping over $80
M-NEPTUNE Running Cap

Recycled Fabrics

M-NEPTUNE Running Cap

Lightweight

M-NEPTUNE Running Cap

UV+30 Protection

M-NEPTUNE Running Cap

Machine Washable (in a bag)

M-NEPTUNE Running Cap

Breathable

M-NEPTUNE Running Cap

Moisture Wicking

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M-NEPTUNE Running Cap

$40.00
  • Benefits and Features
  • Size Guide
  • Shipping and Returns
  • EYE Guarantee

Benefits and Features

  • Bluesign® certified fabric
  • 1% For The Planet Contributor
  • Breathable fabric designed to keep you cool
  • UPF +30 sun protection on the brim and body
  • Dark underbill to reduce glare
  • SWIFTdry™ sweat absorbing internal headband
  • Quickly adjust size for a comfortable fit
  • Soft brim for added comfort and 'packability'

Size Guide

Size Guide

M-Series

Sizes: 56cm (Limited styles) and 58cm

Range in CM: 53cm-59cm and 55cm - 61cm

Brim Length: 6cm

Find Your Fit

Shipping and Returns

Ships within 1-2 business days (can be longer in peak periods)

Tracked shipping

Return shipping at customer's expense within 30 days

EYE Guarantee

Exceed Your Expectations (EYE) Guarantee

If your product doesn’t meet your expectations, contact us—we’re here to help. Read our refund policy.

* Does not apply to sizing, our size guides are just a guide
Benefits and Features
  • Bluesign® certified fabric
  • 1% For The Planet Contributor
  • Breathable fabric designed to keep you cool
  • UPF +30 sun protection on the brim and body
  • Dark underbill to reduce glare
  • SWIFTdry™ sweat absorbing internal headband
  • Quickly adjust size for a comfortable fit
  • Soft brim for added comfort and 'packability'
Size Guide

M-Series

Sizes: 56cm (Limited styles) and 58cm

Range in CM: 53cm-59cm and 55cm - 61cm

Brim Length: 6cm

Shipping and Returns

Ships within 1 business day

Tracked shipping

Return shipping at customer's expense within 30 days

EYE Guarantee

Exceed Your Expectations (EYE) Guarantee

If your product doesn’t meet your expectations, contact us—we’re here to help. Read our refund policy.
Fractel M-ARIZONA Running Cap

M-Series: The perfect blend of style & performance.
M-NEPTUNE Running Cap

Most Popular Style

With over 700 5-star reviews, the M-Series is our ultimate all-rounder, seamlessly blending performance, function, and style.

M-NEPTUNE Running Cap

Versatile Performance Fabrics

Made from breathable, lightweight recycled materials, our base fabric is designed to excel in any activity, delivering comfort and durability wherever you go.

M-NEPTUNE Running Cap

Adjustable, Packable, Washable

Designed for versatility, the M-Series features a pliable peak for easy stowing, plenty of adjustability, and all-day comfort without pressure points.

Close-up of Fractel's REPREVE recycled fabric
Close-up of Fractel's REPREVE recycled fabric

Why REPREVE®?

Using recycled PET fabrics instead of virgin polyester significantly reduces wastewater and crude oil consumption. All REPREVE® fibres are made through an eco-friendly process and meet Bluesign® approved standards, utilising 100% recycled polyester. This lightweight and durable fabric provides runners with excellent moisture-wicking performance, ensuring comfort on every run.

Learn more
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Fractel 'Why we run' brand story banner

Australian born, globally worn

Why we run

We want to create the world’s best sustainable sportswear, using our own experience and passion, in a style that promotes adventure and uniqueness, for a community that loves to get outside and run.

We give 1% of ALL our sales back to organisations that protect the environment.

About Fractel

We acknowledge all First Peoples of the beautiful lands on which we live and celebrate their enduring knowledge and connections to Country. We honour the wisdom of and pay respect to Elders past and present.