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Women Cycling Baselayers

A baselayer does its job invisibly — which is exactly what you want. The right one moves sweat away from skin before it has time to chill, keeps core temperature stable through the changing intensity of a ride, and disappears under a jersey without adding bulk. The Women's Cycling Baselayers collection at RA Cycles covers the full temperature range: lightweight mesh options for warm weather, transitional spring/fall layers, serious winter insulation, and maximum-cold Ultraz options for the days when nothing else is enough. Assos brings its Skin Layer system across every season, while Q36.5 offers a numbered warmth scale — from the Base Layer 0 Mesh through the Base Layer 5 Plus Hoodie — that makes selecting the right layer for conditions straightforward. Sports bras from Assos and Cafe du Cycliste round out the category for riders who prefer integrated layering from the start.

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Women's Cycling Baselayers

The purpose of a baselayer is moisture management and thermal regulation — two things that work together or against each other depending on the fabric you choose. A lightweight mesh base like the Q36.5 Base Layer 0 wicks aggressively without adding warmth, ideal in summer when you want a dry layer between skin and jersey. The Q36.5 numbering system — 0 through 5 — corresponds directly to warmth level, so choosing the right one for the forecast is straightforward. Assos takes a seasonal approach with dedicated layers for Summer, Spring/Fall, Winter, and Ultraz Winter, each tuned for a specific temperature range. The Ultraz Winter Skin Layer P1 sits at the top of that stack, designed for sustained riding in genuinely cold conditions.

Assos dominates the collection with its full women's Skin Layer range, from the Summer Skin Layer Sleeveless through the Ultraz Winter P1. Q36.5's Base Layer series runs from the open-mesh BL0 to the heavily insulated BL5 Plus Hoodie — a range wide enough to cover everything from summer criteriums to winter training rides. The Assos Cycling Bra and Cafe du Cycliste Cesarine Sports Bra bring performance foundation wear into the mix for riders building a full layering system from the ground up.

Browse the full range of women's cycling apparel, or complete your kit with women's cycling jerseys and women's cycling tights.

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R&A Cycles - 50th Anniversary

50 YEARS AND COUNTING

From a Brooklyn storefront to flagships in Walnut Creek and Miami, from handwritten mail orders to a fully digital custom bike builder — RA Cycles has spent half a century doing one thing: serving riders who demand the best. That half-century belongs as much to you as it does to us. The riders who kept coming back, who sent their friends, who trusted us with bikes that matter — you're the reason we're still here. Here's to the next fifty.

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