Armour tees are the under-jersey base layer that turns ordinary kit into impact protection. Leatt builds 3DF AirFit and ReaFlex padding into a ventilated body tee that guards the back, chest and shoulders without bulk, so you wear protection that moves with you all day on the bike.
How To Choose A Leatt Armour Tee
An armour tee earns its place by carrying certified impact protectors on a base-layer chassis. Leatt 3DF AirFit foam is soft and flexible at rest, then stiffens on impact to absorb energy, and its open-cell structure keeps airflow moving against the skin. ReaFlex protectors use a low-profile build that sits flat under a jersey or jacket.
| Feature | 3DF AirFit Lite | ReaFlex Stealth |
|---|---|---|
| Protector type | 3DF AirFit soft foam | ReaFlex moulded |
| Back protector | CE Level 1 capable | CE Level 2 capable |
| Ventilation | Perforated, high airflow | Channelled airflow |
| Profile | Under 10 mm at rest | Low profile |
| Best use | Hot-weather trail days | Higher impact riding |
Back protectors carry CE EN 1621-2 ratings: Level 1 transmits no more than 18 kN of force, Level 2 caps it at 9 kN, so a Level 2 back panel halves the force reaching your spine. Chest protectors follow EN 1621-3, and limb armour follows EN 1621-1 at Level 1 (35 kN max) or Level 2 (20 kN max). An armour tee handles impact only, so any outer textile jacket worn over it should hold an EN 17092 abrasion rating of AAA, AA or A for slide protection. Size by chest measurement in cm and torso length so the back plate sits between the shoulder blades and the base of the spine. A correct fit holds the armour flat with zero shift during a crash.
Frequently asked questions
What does a Leatt armour tee protect?
A Leatt armour tee builds impact protectors into a base-layer body tee to guard the back, chest and shoulders. The 3DF AirFit and ReaFlex padding stays flexible at rest and stiffens on impact to absorb crash energy.
Can I wear an armour tee under my jacket or jersey?
Yes. Leatt armour tees use a low-profile build under 10 mm at rest so they sit flat under an MX jersey or road jacket. The perforated 3DF AirFit foam keeps airflow moving so you stay cooler on long rides.
How do I size a Leatt armour tee?
Size by your chest measurement in centimetres and your torso length. A correct fit holds the back protector flat between the shoulder blades and the base of the spine with zero shift, so the armour stays in place during a crash.











