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SAVE UP TO -45%: Outlet

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Cycling Base Layer

Focused on optimal thermoregulation, this base layer uses 37.5™ technology that keeps your body at the ideal temperature and comfort zone by actively managing moisture and heat.

SizeXS
$64.00 MSRP

Description

Material

67% PES 37.5™

  • 21%PES 12%EA - 130g/m2
Key Features
  • Soft and stretch binding for more comfort
  • Anatomical side seams
  • Longer back
Fit

Designed with a pre-shaped anatomical fit, it naturally follows the body's position on the bike to maximise comfort and deliver superior performance.

Technology

37.5™ Technology is a textile innovation that embeds active particles derived from natural sources into fibres. These particles help regulate body temperature and moisture by capturing and releasing water vapour at the ideal relative humidity of 37.5%. This allows fabrics to dry faster, reduce sweat buildup, and maintain a comfortable microclimate close to the skin.

Continued development

The base layer development builds on the year-long experience of global Swiss Side textiles R&D projects, which also encompassed the development of AERO Calf Sleeves and AERO Socks.

Using the results and fabric selection from the Swiss Side wind tunnel test, multiple prototypes were developed with different fabrics and suit structures. The most promising aerodynamic fabrics were tested on the legs, body sides, shoulders, and arms. A total of more than 15 different prototypes were tested in the wind tunnel on the full-sized mannequin.


Save even more watts...

AERO CALF Sleeves

$106.00 MSRP
SizeS

Developed by Swiss Side's aerodynamic experts, these sleeves are designed to reduce air drag to save up to 8 watts on the bike course of triathlon competitions. Suitable for all triathlete types they offer a non-compressive aero fit for easy application and removal during transitions.

Sizes : S: < 35 cm  // M: 35 – 37 cm // L: >37 cm

Sizing tips: For a better fit, choose one size smaller if unsure. If you have thin ankles and larger calves, go for size M for a comfortable and secure fit.

Frequently asked questions to your AERO Tri Suit

Delivery to USA. Import VAT and duties will be charged upon delivery by local authorities.

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