CHPT./// SOCKS 1.51
CHPT./// SOCKS 1.51
CHPT./// SOCKS 1.51
CHPT./// SOCKS 1.51
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CHPT3 Socks 1.51


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Are the Chpt. /// Socks The Best Socks in The World ? Who knows, there are a lot of socks out there, but one thing for certain these will be the best socks you will ever own.

David Millar talks socks

There's a story behind these socks. They are the best socks I have ever owned. I had numerous pairs back in the day, one of those random promotional gifts from a sponsor. Contrary to most random promotional gifts these puppies became my best friend. I saved freshly wrapped pairs and every time I had to open a new packet I did it grudgingly, knowing my collection was shrinking. I tried to get more off the sponsor, but they had changed supplier. I was heartbroken. When it came to the subject of Chpt./// socks I told Steve Smith of Castelli, "I have the best socks in the world, but I don't know where they are from." So the search began. Steve and I gave our email correspondence the subject title: TBSITW (The Best Socks In The World). I couriered one of my last pairs to Italy to be studied by Laura in R&D at Castelli. Laura ultimately tracked them down to a factory in Northern Italy but the factory was no longer in business. So we had to start over and re-engineer the best sock in the world. 1.51 is the fruit of the quest for TBSITW. The footbed is made with ceramic thread.

I don't know what this does, makes them awesome I think.

The height is quite high; this is how I like them. They will lose a little bit of this height after their first wash, but minimal. The pattern is a code, or key, to the data we used to create the pattern on the base layer. Each colour and line refers to an element – time, km/h, watts, distance, cadence, BPM. The best thing about them is you can wear them off the bike. I wanted socks I could wear with a suit if I wanted; these I can.

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Tech spec for the Chpt. /// Socks 1.51

Summer weight cycling socks with more tech than most cycling ranges.

Meryl Skinlife bacteriostatic upper portion

Ceramic footbed for durability

Pro Length (15cm)

TBSITW ? (the best sock in the world)

Weight 47g Pair

Colour Grey/White/Fire-Red

Castelli Size Guide - Socks

Please select sock size based on your euro shoe size. If your between sizes we recommend you size up

Castelli Size S/M L/XL 2XL
F- Mens Euro Shoe Size 36-39 40-43 44-47

Castelli Cafe - Fitting Guide

Castelli is sized against the rider's physical dimensions the size data in the size guide is the rider size, not the garment size. Castelli garment size is optimised for intended function, So for example an Aero Jersey or Speed Suit are designed to be extremely close fitting, using the material stretch to fit the rider's torso. A race jersey laid on top of a non race jersey of the same size may appear 5cm narrower and not as long - this is intentional as the garment fabrics are designed to stretch to accommodate the riders body shape creating a very close aerodynamic race fit. Never measure old kit to get your Castelli size always measure yourself.

Shoe covers are designed to fit snuggly over road racing shoes only (unless otherwise stated). If your shoes are to the upper end of the size designation and have bulky buckles you should consider the next size up.

1. Snug Fitting; On the bike your jersey or jacket fits snuggly. When riding you don't hear or feel any fabric flapping the close fit helps the capillary action of the fabric to draw moisture from the skin helping you feel drier and more comfortable.

2. Rider Positioning; Fit Off the bike your Castelli jersey or jacket might feel tight across the chest and a little short at the front. This is because the jersey is designed to fit the rider in the riding position. On the bike the fit is prefect with no bunching at the waist and no sagging over the chest. Please keep this in mind when trying on new garments.

3. Fabric Engineering; We use fabrics specifically engineered to wick moisture from the skin or between fabrics, We have created a apparel range that starts with wicking base layers passes through jerseys and onto jackets and shell fabrics. Every element is designed to optimize its specific application - wicking, cooling, thermo regulation, breathability and protection. In order for this to work the fit has to be snug (but never tight)

4. Aerodynamics; The other important aspect of close fitting garments is the aerodynamic advantage they provide. We work closely with professional riders from the Cannondale Team and in wind tunnels to optimise the fit, (again in the important riding position) sleeves are articulated forward to eliminate wrinkles and provide maximum body contact. As an example of our obsession we created the Gabba range of products based around the fit of a race jersey Gabba fits snuggly but provides ultimate weather protection its a key race piece for poor weather conditions allowing athletes to gain an aero advantage over rivals in rain capes.

5. Bib-short Fit; Bib-shorts fit is just as important as a jersey in providing performance - enhancing features such as aerodynamics and muscle support, as well as protecting your bottom from hours spent in the saddle. Bib-shorts should fit tightly enough to support critical leg muscles through compression without inhibiting movement and constricting blood flow. Using a combination of fabrics allows us to fine tune each material's characteristics to optimize fit and performance.

For more details on fitting please visit our full FITTING GUIDE

Chpt. /// Care Instructions*

I'm sorry if you have to read this.

These instructions should be totally superfluous.

In a perfect world you are already in the bar having a drink

(or in the bath with a glass of port)

with not a care in the world about locating a washing machine

and barely an idea regarding the existence of care instructions

Life's not perfect though, well, not all the time

So please pay attention and read this carefully,

contrary to my fathers belief system,

this isn't "the manufacturers opinion" these are the facts.


Don't pretend you know how to wash Chpt. /// because you don't and you will ruin it.

1. MACHINE WASH WARM 30C, (use a non bio liquid detergent) or if you have help, handwash

2.LINE DRY (this means hang it up to dry naturally, not tie it to your roof rack).




DO NOT BE LAZY and let it lie around wet and dirty, get it in the wash ASAP,


*if you follow these instructions you Chpt. /// will last much much longer.

For specific care of The Rocka Jersey please follow our Gabba care instructions in our general care Guide Castelli Cafe Garment Care

Castelli Cafe Delivery

On orders over £50 and on orders under £50 at our discretion your Castelli Cafe package will be delivered by Parcelforce on an Express 24 h service to your stated delivery address. It is your responsibility to have someone available to sign for goods. Goods will not be left unsigned for, if no one is available to sign for your goods, a card will be left (where possible) and your Castelli Cafe package will be left at your local post office. On some small items under £50 we may still post for free using a cheaper signed for service. We do reserve the right to charge postage and packaging fees on orders under £50 in value, this will be a flat charge of £5 and will show on the first page of the checkout pages.

DELIVERY Terms and Conditions


At Castelli Cafe we are happy to offer a full refund on any items returned to us within 30 days of receipt for any reason if the item is unused.

We also offer a full refund (at your request) for goods that prove to have a fault within 30 days of receipt even if this item has been used. Please note you can still request a replacement or repair this is at your discretion.

In addition we offer a full 2 year warranty against manufacturing defects from date of purchase. We will repair, exchange or refund you, for manufacturing or material faults at our discretion in line with fair wear and tear.

RETURNS Terms and Conditions

Please refer to our full T&Cs for more details on purchasing, delivery, returns and your rights as a consumer.