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Base
Layers

Castelli

Flanders Warm Long Sleeve Base Layer (AW23)

£77.00  
Was  £90.00   | Save  £13.00   (14%)
Available Colours
Available Sizes

Castelli

Flanders Warm/Neck Warmer Base Layer (AW23)

£81.00  
Was  £95.00   | Save  £14.00   (15%)
Available Colours
Available Sizes

Castelli

Pro Thermal Mid Vest (AW23)

From  £50.00  
Was  £99.00   | Save  £49.00   (49%)
Available Colours
Available Sizes

Castelli

Bolero Long Sleeve Base Layer (SS24)

£110.00
Available Sizes

Castelli

Cold Days Long Sleeve 2nd Layer (AW23)

£102.00  
Was  £120.00   | Save  £18.00   (15%)
Available Colours
Available Sizes

Castelli

Rosso Corsa Ladies Bra (SS24)

£60.00
Available Colours
Available Sizes

Castelli

Pro Mesh Ladies Short Sleeve Base Layer (SS24)

£65.00
Available Colours
Available Sizes

Castelli

Pro Mesh Ladies Sleeveless Base Layer (SS24)

£60.00
Available Colours
Available Sizes

Castelli

Bolero SS Base Layer (SS24)

£99.00
Available Sizes

Castelli

Bolero Short Sleeve Base Layer (SS24)

£99.00
Available Sizes

Castelli

Bandito Wool Long Sleeve Base Layer (AW23)

£102.00  
Was  £120.00   | Save  £18.00   (15%)
Available Sizes

Castelli

Pro Issue Sleeveless Base Layer - White (SS23)

£35.00  
Was  £43.00   | Save  £8.00   (19%)
Available Sizes

Castelli

Cold Days Ladies Long Sleeve 2nd Layer (AW23)

£119.00  
Was  £140.00   | Save  £21.00   (15%)
Available Sizes

Castelli

Pro Issue Short Sleeve Base Layer - White (SS23)

£39.00  
Was  £48.00   | Save  £9.00   (19%)
Available Sizes

Castelli

Flanders 2 Ladies Warm Long Sleeve Baselayer (AW23)

£77.00  
Was  £90.00   | Save  £13.00   (14%)
Available Colours
Available Sizes

Castelli

Prosecco Tech Short Sleeve Base Layer (SS24)

£75.00
Available Sizes

Castelli

Team Italia Pro Mesh 2.0 Sleeveless Base Layer (SS23)

£51.00  
Was  £59.00   | Save  £8.00   (14%)
Available Sizes

Castelli

Miracolo Wool Short Sleeve Base Layer (SS24)

£80.00
Available Sizes

Castelli

Miracolo Wool Sleeveless Base Layer (SS24)

£70.00
Available Sizes

Castelli

Pro Mesh 2.0 Sleeveless Base Layer (SS24)

£60.00
Available Colours
Available Sizes

Castelli

Pro Mesh 2.0 Short Sleeve Base Layer (SS24)

£64.00
Available Colours
Available Sizes

Castelli

Pro Mesh 4 Ladies Sleeveless Base Layer (SS23)

£56.00  
Was  £65.00   | Save  £9.00   (14%)
Available Colours
Available Sizes

Castelli

Quick-Step Alpha Vinyl Pro Team Mesh Sleeveless Base Layer (SS23)

£59.00  
Was  £69.00   | Save  £10.00   (14%)
Available Sizes

Castelli

Core Mesh 3 Short Sleeve Base Layer (SS24)

£53.00
Available Colours
Available Sizes

Castelli

Bandito Wool Short Sleeve Base Layer (AW23)

£85.00  
Was  £100.00   | Save  £15.00   (15%)
Available Sizes

Castelli

Bandito Wool Sleeveless Base Layer (AW23)

£77.00  
Was  £90.00   | Save  £13.00   (14%)
Available Sizes

Castelli

Bandito Wool Ladies Long Sleeve Base Layer (AW23)

£94.00  
Was  £110.00   | Save  £16.00   (15%)
Available Sizes

Castelli

Prosecco Tech Long Sleeve Base Layer (SS24)

£85.00
Available Sizes

Castelli

Core Seamless Base Layer (SS24)

£60.00
Available Colours
Available Sizes

Castelli

Active Cooling Sleeveless Base Layer (SS24)

£75.00
Available Sizes

Castelli

Pro Mesh 3 Ladies Sleeveless Base Layer (SS22)

£56.00  
Was  £69.00   | Save  £13.00   (19%)
Available Colours
Available Sizes

Castelli

Core Seamless Long Sleeve Base Layer (AW23)

£73.00  
Was  £85.00   | Save  £12.00   (14%)
Available Sizes

Castelli

Core Mesh 3 Sleeveless Base Layer (SS24)

£47.00
Available Colours
Available Sizes

Castelli

Prosecco Tech Ladies Long Sleeve Base Layer (AW23)

£68.00  
Was  £79.00   | Save  £11.00   (14%)
Available Sizes

Castelli

Miracolo Ladies Long Sleeve Base Layer (AW23)

£81.00  
Was  £95.00   | Save  £14.00   (15%)
Available Sizes

Castelli

Miracolo Wool Long Sleeve Base Layer (AW23)

£85.00  
Was  £100.00   | Save  £15.00   (15%)
Available Sizes

Castelli

Pro Issue 2 Ladies Sleveless Base Layer (SS23)

£39.00  
Was  £48.00   | Save  £9.00   (19%)
Available Sizes

Castelli

Core Seamless Short Sleeve Base Layer (SS24)

£70.00
Available Colours
Available Sizes

Castelli

Prosecco Tech Ladies Short Sleeve Base Layer (AW23)

£59.00  
Was  £69.00   | Save  £10.00   (14%)
Available Sizes

Castelli

Pro Issue 2 Ladies Short Sleeve Base Layer (SS23)

£42.00  
Was  £52.00   | Save  £10.00   (19%)
Available Sizes

Base Layers are incredibly important pieces of cycle clothing, designed to be worn next to the skin - base layers not only provide insulation and keep you warm, but they also play an important role in regulating body temperature. Base layers wick sweat away from your body, meaning that sweat is removed from your clothing - keeping you warm in the winter and cool in the summer.

There are many different base layers available, and most of these base layers can be used regardless of cycling discipline - so mountain bikers and road cyclists alike can benefit from them regardless. For a base layer to work properly, it should be tight enough to feel snug - but it should also move freely. There are a range of base layers available, including merino wool base layers from companies such as Mons Royale.

These base layers can be worn on their own on warm days, but work equally well when layered with a range of other cycling clothing, such as jackets, jerseys and gilets.