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Field Notes: AeroWeave LS Jersey

Field Notes: AeroWeave LS Jersey

GARMENT DESIGN TEAM

The AeroWeave LS brings the same open-weave breathability and race geometry of the SS into shoulder season conditions — built to ride standalone in cool air, or layer cleanly under a vest when it drops further.

Temperature Range

0-15°C

Fit Type

Race Fit

Weight

135GSM

Breathability

High (> 200 L/m²/s)

Water Protection

Low (< 3,000mm)

Temperature Range

0-15°C

Fit Type

Race Fit

Weight

135GSM

Breathability

High (> 200 L/m²/s)

Water Protection

Low (< 3,000mm)


Why We Made This

The AeroWeave SS Jersey was built for summer racing. Hot days, fast efforts, maximum airflow. It does that job without compromise.

But a significant portion of riding doesn’t happen in those conditions. Autumn mornings. Spring days that start at 8°C and end at 18°C. Winter training rides where you want to perform, not just survive. For those days, the SS leaves you exposed — literally. You either reach for a base layer and thermal jersey, or you add so many layers that the aerodynamic benefit of AeroWeave is buried under two millimetres of insulation.

The AeroWeave LS Jersey was built for that window. Same race-oriented construction. Same performance fabric philosophy. A long sleeve, so you can ride it standalone in shoulder season conditions, or wear it as a technical base when the temperature drops further and a vest or shell goes on top.

Product Specifications

Specification Detail
Perfect For Autumn / winter / spring riding, training, racing in cooler conditions
Primary Fabric AeroWeave 135gsm
Chest Panel FeatherSoft 160
Key Functions Airflow, breathability, layering-compatible, reflective detailing
Fit Race Fit — men’s and women’s specific geometry

AeroWeave: The Same Fabric, A Different Season

AeroWeave is a 135gsm open-weave fabric — 90% polyester, 10% nylon — that was originally developed for our hottest, most demanding summer jerseys. The open construction allows airflow to pass directly through the fabric rather than relying purely on moisture wicking. In practice, it means you don’t just stay dry on hard efforts — you stay cooler.

On a long-sleeve jersey, that breathability doesn’t become a liability in the cold. At 135gsm, AeroWeave sits in a weight band that’s genuinely functional across a wide temperature range. It’s light enough to not trap heat on a hard climb, but substantive enough to buffer wind chill at speed. The 10% nylon content adds durability and shape retention across the sleeve — important when the fabric is covering the full arm and going through more mechanical stress with each pedal stroke.

The surface texture inherent to the open-weave construction also has an aerodynamic function. Rather than a smooth jersey surface that allows turbulent air to separate, the micro-texture of AeroWeave creates a boundary layer effect — the same principle behind dimpled golf balls. You won’t measure it on a training ride, but at race pace in a crosswind, it adds up.

OEKO-TEX® certified — independently verified free from harmful substances.

FeatherSoft 160: Where the Comfort Lives

The chest panel is a different problem than the back and sleeves. Your back generates heat and needs airflow. Your arms need coverage and some wind protection. Your chest — particularly when riding in a tucked position — takes direct wind load and sits against your skin constantly.

FeatherSoft 160 at 160gsm is the softer, more skin-friendly face for that panel. Where AeroWeave is optimised for airflow and aerodynamics, FeatherSoft 160 is optimised for direct skin contact — a surface that doesn’t abrade during long efforts and sits quietly against your chest over four or five hours in the saddle. The weight difference between the two fabrics (135 vs 160gsm) reflects what each is doing: AeroWeave minimises material mass to maximise airflow; FeatherSoft 160 adds a little more structure and softness in the panel where you need it.

Together, the two fabrics cover different performance vectors without requiring you to choose between them. The jersey doesn’t have one character — it’s body-mapped so each panel does its specific job.

Built to Layer

The LS construction was engineered with layering in mind from the start. Race fit means it sits close to the body — no bunching or bagging under a vest. The slim sleeve profile means a gilet or shell goes on over the top cleanly, without extra fabric to manage at the armpit or wrist. No excess material means no pressure points, no trapped air, no reason to leave the outer layer on longer than you need it.

When conditions are mild — a cool autumn morning, a fresh spring day — the AeroWeave LS works standalone. You don’t need to add anything. The long sleeve gives you coverage without warmth you don’t want. When it drops further, you pull on a vest and the LS becomes an active base: still wicking, still breathing, not just padding out the space between you and the insulating layer.

The reflective detailing is a practical nod to when this jersey actually gets ridden. Autumn and spring riding often means lower light — earlier sunrises, later sunsets, variable cloud cover. Visibility matters more than it does in July.

Who This Is For

The AeroWeave LS is for the rider who trains and races year-round and wants a single technical jersey for the seasons that aren’t summer. One layer when conditions allow. A performance base when they don’t. No compromise on fit or fabric quality just because it’s October.

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FIELD NOTES

Field Notes are our way of pulling back the curtain. They’re written by the designers and athletes who build and break every Black Sheep product. Real testing. Real data. Real stories from the road, trainer, or lab — all to show the work behind the gear you wear every day.

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