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Undergarments

Castelli Core Mesh 3 Sleeveless
$49.99
This is our base layer for the warmest conditions. The mesh is open to create a space on the skin for sweat to evaporate. The 10% elastane content makes it very stretchy and helps in the moisture retention so that you're always getting evaporative cooling. - Magic Mesh 90% polyester, 10% Elastane wicking fabric - Minimalist lightweight construction - Reduced seams for maximum comfort
Castelli Pro Issue W Sleeveless
$49.99
- Ideal for cool conditions when you need an extra layer under your jersey - 100% polyester 3D mesh fabric - Reduced seaming at shoulders for extra comfort - Double-layer construction at neck
Castelli Prosecco R SS
$59.99
The Prosecco base layers are our mid-weight option and are made to wick moisture away from your body while adding a moderate amount of insulation. This all-around base layer can be used under a short-sleeve jersey to extend the comfort range to those first cool fall days, or even under a full jacket for your intense cold-weather training sessions. - Prosecco mid-weight fabric to keep you dry with a bit of insulation as well - Cut to fit under any Castelli jersey - Flat seams
Castelli Prosecco Wind LS
$89.99
Throw this under your favorite jersey and you’ll be surprised how much warmer you feel when you keep the wind off your chest. Underneath that windproof layer is our Prosecco fabric with a hydrophilic treatment to move moisture away from your body. - All the moisture management of our Prosecco base layer plus the added protection of a windproof front panel - Prosecco 1st Layer 100% polyester main fabric with Gore Windstopper windproof membrane on front panel - Mid-height collar - Flat-finish bottom hem
Castelli Baselayer 1.85 Backyard
$140.00
Nestled in the foothills of the Pyrenees, Girona—often referred to as “The Pro’s Backyard”—is the perfect location for those long training rides. The various routes became the inspiration for the surface pattern, an abstract road map of the roads and villages that every pro knows. - A 3 season, soft and stylish Base Layer - Polyester Microfibre with Hydrophilic outer layer - Panelled hems
Castelli Core Mesh 3 SS
$54.99
This is our base layer for the warmest conditions. The mesh is open to create a space on the skin for sweat to evaporate. The 10% elastane content makes it very stretchy and helps in the moisture retention so that you're always getting evaporative cooling. - Magic Mesh 90% polyester, 10% Elastane wicking fabric - Minimalist lightweight construction - Reduced seams for maximum comfort
Castelli Flanders 2 W Warm LS
$89.99
- SottoZero Fleece multi-denier 100% polyester fabric - Flat-lock stitching - Mesh armpit insert - Flat hem tucks away in tights
Castelli LSWBL Baselayer 1.82
$200.00
The Long Sleeve Winter Base Layer (aka LSWBL) is our twist on a staple item of every cyclist’s winter wardrobe. Sometimes we have no choice but to venture out when it’s cold or wet, or worse, when it’s cold AND wet. That’s when the LSWBL is dug out from its summer hibernation. We have used a new technology, called NuYarn, a nylon core wrapped with merino wool which makes up 15% of the overall material making the fabric more comfortable, stretchier, drier, warmer, stronger, and tougher than normal wool. It’s surprisingly light for its warmth and warm for its weight. - 35% stretchier, retains shape over time, even after washing - 35% warmer due to its lower density, lighter and loftier fabric - 5x faster at drying, due to the nylon core
Castelli Pro Issue W SS
$59.99
This is the piece our pros requested for those inbetween conditions where the Prosecco R is too warm and the Pro Mesh is too cool, like Spain in February or Belgium in April. You’re not looking for warmth from your base layer, just something to move the moisture away from your body and help your race jersey perform. Our 3D mesh fabric creates dead air space next to your skin, while the polyester capillary action moves sweat away. - Ideal for cool conditions when you need an extra layer under your jersey - 100% polyester 3D mesh fabric - Reduced seaming at shoulders for extra comfort - Double-layer construction at neck
Castelli Prosecco R LS
$79.99
- Prosecco mid-weight fabric to keep you dry with a bit of insulation as well - Cut to fit under any Castelli jersey - Flat seams
Castelli Prosecco R W LS
$79.99
The Prosecco base layers are our mid-weight option and are made to wick moisture away from your body while adding a moderate amount of insulation. This all-around base layer can be used under a short-sleeve jersey to extend the comfort range to those first cool fall days, or even under a full jacket for your intense cold-weather training sessions. - Prosecco mid-weight fabric to keep you dry with a bit of insulation as well - Cut to fit under any Castelli jersey - Flat seams
Castelli Prosecco R W SS
$74.99
The Prosecco base layers are our mid-weight option and are made to wick moisture away from your body while adding a moderate amount of insulation. This all-around base layer can be used under a short-sleeve jersey to extend the comfort range to those first cool fall days, or even under a full jacket for your intense cold-weather training sessions. - Prosecco mid-weight fabric to keep you dry with a bit of insulation as well - Cut to fit under any Castelli jersey - Flat seams
Castelli Prosecco Wind SS
$79.99
Throw this under your favorite jersey and you’ll be surprised how much warmer you feel when you keep the wind off your chest. Underneath that windproof layer is our Prosecco fabric with a hydrophilic treatment to move moisture away from your body. - All the moisture management of our Prosecco base layer plus the added protection of a windproof front panel - Prosecco 1st Layer 100% polyester main fabric with Gore Windstopper windproof membrane on front panel - Mid-height collar - Flat-finish bottom hem
Castelli Rosso Corsa Bra
$59.99
We wanted to make a bra for the unique demands of cycling. Compared to other sports there's less impact but requires a higher level of moisture management. We've engineered in just the right amount of support—you'd certainly never go running in this bra but it's just right for cycling. - Superlight stretch fabric perfect for cycling - Mesh inserts for extreme breathability keep you cool and dry - Back hook-and-eye closure with 3-position regulation for easy on and off - Molded cups with full coverage - Medium support thanks to contoured seams and underbust elastic for enhanced fit and support
Castelli SSWBL Baselayer 1.84
$200.00
The Short Sleeve Winter Base Layer (aka SSWBL) is our twist on a staple item of every cyclist’s winter wardrobe. Sometimes we have no choice but to venture out when it’s cold or wet, or worse, when it’s cold AND wet. That’s when the SSWBL is dug out from its summer hibernation. We have used a new technology, called NuYarn, a nylon core wrapped with merino wool which makes up 15% of the overall material making the fabric more comfortable, stretchier, drier, warmer, stronger, and tougher than typical wool. It’s surprisingly light for its warmth and warm for its weight. - 35% stretchier, retains shape over time, even after washing - 35% warmer due to its lower density, lighter and loftier fabric - 5x faster at drying, due to the nylon core
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