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NEW SEASON. FRESH GEAR. SHOP FALL '25 NEW SEASON. FRESH GEAR. SHOP FALL '25
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Gear up with PEARL iZUMi's cycling baselayers, engineered for comfort and performance. These layers regulate body temperature, wick moisture, and ensure an enjoyable ride in any weather. Whether you're chasing miles or commuting, experience unmatched comfort and versatility.
Hot climbs. Cold starts. Everything in between. Our cycling baselayers manage sweat, regulate temperature, and make every layer work better—road, gravel, and trail. Choose ultralight mesh for heat, Merino blends for variable weather, and thermal base layers for deep season. Function first, so comfort disappears and the ride takes over.
Ultralight mesh (heat/tempo): maximum airflow with rapid moisture transfer for race pace and indoor sessions.
Merino blends (variable/cool): naturally breathable, odor-resistant comfort that adapts across changing temps.
Thermal synthetics (cold): brushed interiors trap warmth yet breathe on climbs.
New to base layers? Start with the Base Layer Guide.
75°F+: sleeveless mesh to move sweat and prevent cling.
60–75°F: lightweight short-sleeve for steady wicking without extra heat.
45–60°F: midweight long-sleeve or Merino for cool starts and shoulder season.
30–45°F: thermal long-sleeve plus a wind vest or jacket from Men’s Jackets & Vests / Women’s Jackets & Vests.
Below 30°F: heavy thermal base under an insulated or softshell outer; add Men’s Wet Weather / Women’s Wet Weather in storms.
Base: pick fabric by effort and climate.
Mid: add a long-sleeve or thermal men’s jersey / women’s jersey for warmth and storage.
Outer: finish with jackets & vests (men’s) / jackets & vests (women’s); in wet weather, go seam-sealed from Men’s Wet Weather or Women’s Wet Weather.
Lower half: when temps drop, pair with men’s tights & bib tights or women’s tights & bib tights.
Baselayers should fit close to the skin with smooth seams and no bunching; length should tuck cleanly and stay put in the drops. If you’re between sizes, check the Size & Fit Guide.
Do cycling base layers make you hotter in summer?
Counterintuitively, no—lightweight mesh can improve evaporative cooling by pulling sweat off skin so airflow can work.
Merino or synthetic?
Merino blends shine across variable temps and multi-day use; synthetics excel at max wicking in peak heat and interval work.
Sleeveless vs. short vs. long sleeve?
Sleeveless for heat and races; short sleeve for everyday riding; long sleeve for cool mornings and shoulder season.
How many base layers do I need?
Most riders cover the year with three: mesh (summer), lightweight short sleeve (spring/fall), and thermal long sleeve (winter).
