Australian winter riding is a wind problem before it is a temperature problem. Adelaide, Melbourne and Sydney rarely dip below freezing at road level, but a 6 degree morning at 30km/h feels closer to minus 2 on exposed skin. Get the wind off you and manage the sweat underneath, and winter riding becomes the best season of the year: empty roads, cool legs, no heat stress.
This guide walks through what to buy, in what order, and what you can skip.
The layering system
Three layers, each with one job.
Layer 1, base layer. Moves sweat off your skin. This is the layer most riders skip and the one that matters most. If sweat sits on your skin, the air trapped in your jacket turns cold the moment you stop climbing. Merino wool holds warmth when damp and does not smell. Synthetic wicks faster and costs less. Either beats bare skin by a wide margin.
Layer 2, insulation. Traps warm air. A thermal long sleeve jersey with a brushed fleece interior does this. On mild mornings you can skip it and go base layer straight to jacket.
Layer 3, protection. Stops wind and rain. A windproof jacket, a vest, or a waterproof shell depending on the day.
The mistake to avoid is one very thick jacket over a cotton t-shirt. It is warm for ten minutes and cold for the next two hours.
Choosing your outer layer
Thermal jersey, 10 to 15 degrees
A long sleeve jersey with a brushed fleece lining. No wind protection to speak of, so it works on still mornings and for steady efforts where you generate your own heat. Good first purchase if you already own a gilet.
Windproof jacket, 5 to 12 degrees
The single most useful winter garment for Australian riders. A treated or membrane front panel blocks wind, the back panel stays breathable so sweat escapes. Castelli's Perfetto and Gabba family are the reference point here, and are built to be worn as an outer layer over a jersey in cold and light rain alike.
If you buy one thing this winter, buy this. Browse winter jackets and long sleeve jerseys.
Insulated jacket, below 5 degrees
Heavier fleece, sometimes with a windproof membrane throughout. Warm enough that you will overheat above 8 degrees. Worth it if you ride pre-dawn through July in the hills.
Waterproof shell, sustained rain
Fully taped seams and a waterproof membrane. Trades breathability for protection, which means you get wet from the inside on a hard effort. Own one for the days it genuinely rains, and reach for the windproof jacket the rest of the time.
Vest or gilet, the swing option
Blocks wind on the chest, leaves arms free. Packs into a pocket. The most useful item for mornings that start at 6 degrees and finish at 18. See the vests and gilets range.
Legs
Knees complain first in the cold, and cold knees are a genuine injury risk over a season, not just a comfort issue. The rule most riders settle on is knees covered below 15 degrees.
Leg and knee warmers over your summer bibs work down to about 12 degrees and roll off into a pocket when the sun arrives. Cheapest way to extend the kit you already own.
Thermal bib tights are warmer, more comfortable and do not slip. If you ride through winter more than twice a week, these are the better purchase. Look for a brushed interior and a chamois rated for long rides, since winter rides tend to be slower and longer in the saddle.
Bibless thermal tights suit riders who dislike the shoulder straps, and are easier for toilet stops.
Extremities: where winter rides actually go wrong
Cold hands lose the ability to brake and shift confidently. Cold feet are simply miserable. Both are cheap to fix and both get postponed.
Gloves. Full finger, windproof on the back of the hand, with enough dexterity to work levers. Two pairs beats one very heavy pair: a mid weight for 8 to 15 degrees, a heavy pair for below 8. Browse winter gloves and warmers.
Shoe covers. Cycling shoes are vented for summer. That airflow works against you in July. Neoprene covers are the cheapest comfort upgrade in cycling, and they last years.
Socks. Thicker winter socks help, up to a point. Do not size up your socks so far that they compress your foot inside the shoe, since restricted circulation makes cold feet worse.
Neck and head. A neck warmer seals the gap at your collar, which is where most heat escapes. A thin cap under the helmet covers your ears.
Sizing, and why Italian brands run small
Castelli and Santini size to an Italian race fit, which typically runs a full size smaller than Australian expectations. Pearl Izumi and MAAP sit closer to true to size. Isadore runs a relaxed fit.
Two rules that work:
- Buying a jacket to wear over a jersey? Take your normal size or size up.
- Buying a thermal jersey to wear under a jacket? Take the race fit and size down if between sizes.
Every product page links the brand's own chart. If you are new to a brand, the Adelaide showroom is worth the trip.
A sensible buying order
If you are building winter kit from nothing, buy in this order:
- Base layer
- Windproof jacket
- Full finger gloves
- Thermal bib tights or leg warmers
- Shoe covers
- Neck warmer
- Vest
- Second, heavier glove for the coldest weeks
The first three transform the experience. Everything after that is refinement.
Adelaide temperature reference
| Morning temp | Torso | Legs | Extremities |
|---|---|---|---|
| 15 to 18 | Jersey plus base layer | Bibs, knee warmers optional | Light gloves |
| 10 to 15 | Thermal jersey or jersey plus vest | Knee or leg warmers | Mid weight gloves |
| 5 to 10 | Base layer, jersey, windproof jacket | Thermal bib tights | Winter gloves, shoe covers |
| Below 5 | Base layer, thermal jersey, insulated jacket | Thermal bib tights | Heavy gloves, covers, neck warmer, cap |
Add one step warmer if you are riding into a headwind or descending for long stretches. Take one step lighter if you are heading straight into a climb.
Ready to build your winter kit?
Everything covered here is in our winter cycling clothing collection, currently 10 to 50 percent off. Questions about fit or what to buy first? Visit our Adelaide showroom or get in touch. We ride in this stuff.