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Castelli Chpt3 K61 1.42 Mk2 Jacket

£330.00 £115.50

The ultimate wet weather jacket: incredibly breathable and instantly recognizable.The K61 uses eVent fabric that offers a uniquely soft texture and packs down small enough to fit in your rear pocket - the forerunner in waterproof, breathable fabric technology. .. Read more

C3 BlackC3 Black
SKU: CST92001540852


The ultimate wet weather jacket: incredibly breathable and instantly recognizable.

The K61 uses eVent fabric that offers a uniquely soft texture and packs down small enough to fit in your rear pocket - the forerunner in waterproof, breathable fabric technology.

The eVent material has two vital jobs: firstly to be completely waterproof, shielding you from the rain. Sure, many jackets offer this but it's the next job that's much more unusual - to be a genuine, breathable membrane that stops you boiling from the inside and getting just as wet as had you gone out with no jacket. Known by those who use it to ‘let the sweat out’, it releases moisture via millions of tiny pores in the inner surface. From these pores, sweat is vented to the outside of the fabric and away from your body more efficiently than any other material.

Similarly, its texture doesn't compare to other waterproof materials, it feels very soft and light, luxurious in fact. That property alone makes it special, it hangs differently when worn, and can be folded up smaller than other waterproof/breathable jackets, stuffing neatly into a rear pocket.

Then there are the little details which truly separate it from the rest: first the higher neck, then the chest pocket with the storm flap, the black reflective beading along the rear hemline, and lastly but most importantly the buttoned cuff. When undone the arm length increases enough to cover the top of your gloved hand, creating a seal from even the worst downpour.

Key Features

  • Outstanding breathability from the 70g eVent waterproof fabric
  • Tailored cut with darts to give a refined silhouette
  • All seams are taped for complete waterproofing
  • Folds down to fit in a jersey pocket
  • Waterpoof zip
  • Zipped front pocket with storm flap
  • Reflective cuffs which can be folded up or folded down and closed tight to seal out the elements when riding

    ABOUT Chpt3

    In 2015, the Chpt3 project provided the newly-retired David Millar, and designer Richard Pearce, with the opportunity to work alongside long-time sponsors to create something truly different and exclusive. A collaboration with Castelli launched the brand; a collection of lovingly designed cycling garments that fuse the latest material technology with a sartorial elegance opposed to the billboard stylings of the peloton. The result is the ultimate in both performance cyclewear and coffee-stop chic. Read more about CHPT3.


    Founded by real cycling enthusiasts in 2004, our passion for elite performance runs through everything we do at Saddleback. Our team of dedicated roadies, mountain bikers and triathletes practice what we preach to bring you the finest cycling products and a superior service to match. We're the official UK home of Abbey Bike Tools, Castelli, Chris King, ENVE, HJC, Moots Cycles, Pivot Cycles, PUSH, Sidi, Silca, Sportful, Stages, Troy Lee Designs and Wolf Tooth.


    CHPT3 Size Guide

    CHPT3 – Tailored Sizing (pre-2020)

    Chest Inch CM Waist Inch CM
    A - 36 36 91.5 B - 29  29 73.5 
    A - 38 38 96.5 B - 30  30  76
    A - 39 39 99 B - 31  31  78.5
    A - 40 40 101.5 B - 32   32  81
    A - 41 41 104 B - 33  33  83.5
    A - 42 42 106.5 B - 34  34 86 
    A - 44 44 111.5 B - 36  36  91

    CHPT3 clothing uses a tailoring system for its sizes. The physical chest or waist size is used as the garment size. If you have a 40" chest, you will need a 40" jersey. Please note that while the CHPT3 range is not designed for racing, it is still a close fitting athletic design suitable for active cyclists.

    CHPT3 - 2020 range onwards

    A - Chest B - Waist C - Hips D - Inseam
    XS 88cm 76cm 90cm 81cm
    S 92cm 80cm 94cm 82cm
    M 96cm 84cm 98cm 83cm
    L 100cm 88cm 102cm 84cm
    XL 105cm 93cm 107cm 85cm
    2XL 110cm 98cm 112cm 86cm
    3XL 115cm 104cm 116cm 87cm

    Men's and unisex Castelli sizing is based on your physical measurements and the garment's intended use. Race items are designed to use fabric stretch to achieve a very snug fit; as such physical garment sizes vary within the range. Please don't compare sizing with other manufactures. The sizes shown above are for the maximum size, so someone with a 99cm chest would be a size L. If you have a 101cm chest then you're an XL.


    Sidi Cycling Shoes Size Guide

    Sidi EU Size UK Size US Size Length (cm)
    35 13 1 23
    35.5 13 1 23
    36 1 2 23.5
    36.5 1 2 23.5
    37 2 3 24
    37.5 2 3 24
    38 3 4 24.5
    38.5 3 4 24.5
    39 4 5 25
    39.5 4 5 25
    40 5 6 25.5
    40.5 5 6 25.5
    41 6 7 26
    41.5 6 7 26
    42 7 8 26.5
    42.5 7 8 26.5
    43 8 9 27
    43.5 8 9 27
    44 9 10 27.5
    44.5 9 10 27.5
    45 10 11 28
    45.5 10 11 28
    46 11 12 28.5
    46.5 11 12 28.5
    47 12 13 29
    47.5 12 13 29
    48 13 14 29.5

    Sidi fitting guide

    Like many handcrafted Italian shoes, Sidi cycling shoes feature a slim fit, the equivalent of a ‘D’ width. In our experience, if you’re usually a 45 in cycling shoes, you’ll be a 45 in Sidi shoes.

    However, you also have the option of Sidi’s half sizes. These use the same length soles as the main size (i.e. 45 and 45.5 are the same length) but use a larger volume upper. This is perfect if you need a touch more width, have slightly higher arches or use an insole that takes up some of the volume of your shoe.

    The volume and fit of the shoe is also affected by the closure system utilised. We’ve found that the combination of a central dial with the Soft Instep 4 strap means the Sidi Wire 2 has a slightly roomier toebox than the rest of the range, making it ideal for those seeking Italian styling with a little extra wiggle room.

    If you need more volume, Sidi’s range of Mega fit shoes feature soles that are 4mm wider and have larger uppers for those with higher volume feet or deep orthotics.

    Of course, everyone’s feet are different and slipping the shoes on will give you the best idea. We’d recommend trying them on towards the end of the day or even after a long ride to give your feet a chance to swell to their maximum size.

    If your toes are brushing the end of the shoe, they’re too small. If you stand on tiptoes and the heel of the shoe doesn’t lift with the heel of your foot, creating a gap, they’re too big.


    TLD D3/D4 Helmet Size Guide


    TLD A1/A2 Helmet Size Guide


    Sportful Clothing Size Guide


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