Castelli Pro Seamless 2 Arm Warmers

Comfort, elasticity, and versatility for cycling

The Castelli Pro Seamless 2 Arm Warmers are designed to offer an excellent balance of comfort, thermal protection, and versatility during bike rides.

Thanks to their completely seamless construction and highly elastic fabric, they adapt perfectly to the arm, guaranteeing a comfortable fit without restricting freedom of movement.

The wide usage range, between 10°C and 20°C, makes the Castelli Pro Seamless 2 an ideal accessory for tackling the variable temperatures typical of mid-seasons and rides during cooler hours.

Medium-weight fabric

The medium-weight fabric offers effective thermal insulation without causing excessive overheating.

The arm warmers are therefore warm enough when the temperature drops, but designed to maintain a good level of comfort even when conditions turn milder.

Completely seamless construction

The completely seamless construction is one of the distinctive features of the Castelli Pro Seamless 2.

The absence of seams contributes to making the warmer particularly comfortable against the skin, while the high elasticity allows the fabric to follow the movement of the arm during pedaling.

The result is a tight, soft, and discreet fit, ideal for wearing under a cycling jersey or with a racing kit.

Exclusive fiber blend

Castelli has developed an exclusive blend consisting of:

• 78% polyester

• 15% nylon

• 7% Lycra®

The combination of these materials offers elasticity and comfort, allowing the warmer to adapt effectively to the shape of the arm.

Ideal between 10°C and 20°C

The Castelli Pro Seamless 2 are suitable for temperatures between:

10°C - 20°C / 50°F - 68°F

This wide usage range makes them particularly versatile in spring and autumn, or during days when the temperature can vary significantly between the start and the warmest part of the ride.

They are also a practical solution for those who want to quickly add a protective layer to their arms without having to completely change their outfit.

Extremely compact when packed

One of the main advantages of the Castelli Pro Seamless 2 Arm Warmers is their convenience.

When no longer needed, they can be packed extremely compactly, taking up very little space. You can therefore easily carry them in your cycling jersey pockets and wear them when necessary.

They are ideal for rides characterized by large temperature variations, when having an extra layer can make all the difference in terms of comfort.

Product features

• Seamless medium-weight cycling arm warmers

• Surprisingly warm without causing overheating

• Completely seamless construction

• Highly elastic fabric

• Exclusive 78% polyester / 15% nylon / 7% Lycra® blend

• Comfortable, snug fit

• Extremely compact when packed

• Ideal for temperatures between 10°C and 20°C