The fastest triathlon suit we have ever measured. Built directly from the Neo TT Suit platform — the suit that saves 16.14 W at 50 km/h versus the previous Neo Suit + separate Aero Base Layer.

Model is 6' 1" and 165lbs wearing a size M
Shop the Silhouette

Shop the Silhouette

Neo Triathlon Suit
Neo Triathlon Suit
Rule 28
$700.00
Neo Aero Guard
Neo Aero Guard
Rule 28
$130.00

Shop the Silhouette

Neo Triathlon Suit
Neo Triathlon Suit
Rule 28
$700.00
Neo Aero Guard
Neo Aero Guard
Rule 28
$130.00

Shop the Silhouette

Neo Triathlon Suit
Neo Triathlon Suit
Rule 28
$700.00
Neo Aero Guard
Neo Aero Guard
Rule 28
$130.00
Years in development with Olympic and long-distance World Champions. Every panel, every seam, every fibre placement refined with their feedback. Dual-layer construction: smooth outer woven panels over a permanent ribbed underlayer. The aero structure sits against the skin and never shifts — no base layer required, no misalignment possible.
All-new woven textiles replace knitted fabrics throughout. Lower skin friction, longer flow attachment on the bike, cleaner release in the water.
Dual-entry rear pocket with angled openings tested to cut both aero and hydrodynamic drag. Easy reach at 45 km/h, low drag at 4 min/100 m pace.
Tri-specific chamois, 6 mm multi-density, fast-drying, minimal hydro drag. No stone unturned in the search for performance
Usage

Built for riders looking for the highest performance level possible. Especially relevant for high-speed racing.

Technology

Aero

The Neo suit uses a ribbed under-layer under a smooth upper surface to deliberately “trip” airflow into turbulence around the arms which moves the air-separation point downstream, shrinking the low-pressure wake and reducing overall drag. By combining optimized rib-spacing (macro-structure) under a low skin friction outer layer, the suit achieves substantial drag reduction - translating into substantial power savings for the same speed.

Second Skin

Custom made, ultra-low skin friction fabric, made from very fine, high density fibres hides the body from the wind.

Features
  • 2x large rear pocket with aerodynamic, ergonomically angled entry
  • Custom made fabrics for unrivalled aerodynamic performance
  • Elastic Interface Triahlon Performance Chamois
  • Invisible zipper for minimal drag
  • Integrated leg grippers
  • Waist height opening below zipper to aid with nature brakes
Composition & Care

Elastane 39% Poly 61% 125GSM
Elastane 35% Poly 65% 165GSM

Machine wash cold (30° max)

Do not bleach

Don not store damp

Do not tumble dry

Do not dry-clean

Warranty

All pieces carry a one-year manufacturing warranty from date of purchase. This covers defects in materials, workmanship, and construction faults. Thsi does not extend to normal wear and tear, or improper care. This warranty only applies only to purchases made directly through our site.

For any claim, reply to your order confirmation email or write to info@rule28.com with your order number and clear photos. We’ll handle it the same day.

Crash Replacement

If the worst happens and your kit is damaged beyond repair in a crash, send us clear photos of the damage along with your original order details.

We’ll sort a discounted replacement the same day we receive them. Like-for-like where possible.

This sits alongside the standard one-year manufacturing warranty and doesn’t cover normal wear or misuse.

Just email info@rule28.com — we’ve got your back when the road doesn’t.

Neo Triathlon Suit

Neo Triathlon Suit

$700.00 USD
$700.00 USD $700.00 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.
13.5W Saving
World Class Tech
As seen in the T100
Size Size Guide

Performance

Core Elite

Temperature

°C °F
-10 °C 0 °C 15 °C +30 °C
Breathability
3/5
Duration
4/5

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Still need assistance?
Our support team is here to help.
Reach out through our contact form.

Shipping & Returns

Returns are accepted within 14 days of delivery. Items must be unworn and in their original packaging.

View full details

The fastest triathlon suit we have ever measured. Built directly from the Neo TT Suit platform — the suit that saves 16.14 W at 50 km/h versus the previous Neo Suit + separate Aero Base Layer.

Model is 6' 1" and 165lbs wearing a size M
Shop the Silhouette

Shop the Silhouette

Neo Triathlon Suit
Neo Triathlon Suit
Rule 28
$700.00
Neo Aero Guard
Neo Aero Guard
Rule 28
$130.00

Shop the Silhouette

Neo Triathlon Suit
Neo Triathlon Suit
Rule 28
$700.00
Neo Aero Guard
Neo Aero Guard
Rule 28
$130.00

Shop the Silhouette

Neo Triathlon Suit
Neo Triathlon Suit
Rule 28
$700.00
Neo Aero Guard
Neo Aero Guard
Rule 28
$130.00
Years in development with Olympic and long-distance World Champions. Every panel, every seam, every fibre placement refined with their feedback. Dual-layer construction: smooth outer woven panels over a permanent ribbed underlayer. The aero structure sits against the skin and never shifts — no base layer required, no misalignment possible.
All-new woven textiles replace knitted fabrics throughout. Lower skin friction, longer flow attachment on the bike, cleaner release in the water.
Dual-entry rear pocket with angled openings tested to cut both aero and hydrodynamic drag. Easy reach at 45 km/h, low drag at 4 min/100 m pace.
Tri-specific chamois, 6 mm multi-density, fast-drying, minimal hydro drag. No stone unturned in the search for performance
Usage

Built for riders looking for the highest performance level possible. Especially relevant for high-speed racing.

Technology

Aero

The Neo suit uses a ribbed under-layer under a smooth upper surface to deliberately “trip” airflow into turbulence around the arms which moves the air-separation point downstream, shrinking the low-pressure wake and reducing overall drag. By combining optimized rib-spacing (macro-structure) under a low skin friction outer layer, the suit achieves substantial drag reduction - translating into substantial power savings for the same speed.

Second Skin

Custom made, ultra-low skin friction fabric, made from very fine, high density fibres hides the body from the wind.

Features
  • 2x large rear pocket with aerodynamic, ergonomically angled entry
  • Custom made fabrics for unrivalled aerodynamic performance
  • Elastic Interface Triahlon Performance Chamois
  • Invisible zipper for minimal drag
  • Integrated leg grippers
  • Waist height opening below zipper to aid with nature brakes
Composition & Care

Elastane 39% Poly 61% 125GSM
Elastane 35% Poly 65% 165GSM

Machine wash cold (30° max)

Do not bleach

Don not store damp

Do not tumble dry

Do not dry-clean

Warranty

All pieces carry a one-year manufacturing warranty from date of purchase. This covers defects in materials, workmanship, and construction faults. Thsi does not extend to normal wear and tear, or improper care. This warranty only applies only to purchases made directly through our site.

For any claim, reply to your order confirmation email or write to info@rule28.com with your order number and clear photos. We’ll handle it the same day.

Crash Replacement

If the worst happens and your kit is damaged beyond repair in a crash, send us clear photos of the damage along with your original order details.

We’ll sort a discounted replacement the same day we receive them. Like-for-like where possible.

This sits alongside the standard one-year manufacturing warranty and doesn’t cover normal wear or misuse.

Just email info@rule28.com — we’ve got your back when the road doesn’t.

Size Guide

Race Fit. When standing the suit will feel tight on the front as it is designed for optimal fit when in a TT position.

Your Body Measurements

CM IN
Size Chary
XS
82-87
<75
84-89
S
88-94
76-80
90-94
M
95-100
81-87
95-100
L
101-105
88-92
101-107
XL
106-111
93-99
108-114
Body measurement guide

How to Get Your Measurements

1

Chest

With your arms relaxed by your sides, measure the broadest area of your chest, just beneath your underarms.
2

Waist

Measure around the slimmest part of your waist.
3

Hips

Stand naturally with feet shoulder-width apart and wrap the tape around the widest point of your hips.
As seen in the T100
Over an Ironman bike leg (180 km), at 40 kph, a saving of 13.46 W would save our test rider approximately 3 minutes 55 seconds compared to our previous single-layer suit. Put another way, as this rider crossed the line in the Neo Tri Suit, the same rider in our previous suit would be around 2.6 km (1.6 miles) behind.
Developed for use by competitors at the 2024 Games in the Time Trail and Track events
Used by top T100 pro athletes
13.5W Saving
World Class Tech
As seen in the T100