Castelli Velocissima Womens Knickers

Buy Today in our BIGGEST January Sale EVER
Now £71.25
Save 25% RRP: £95.00
Price Match
Ask a question
Select a size
Add to Basket

Note: Castelli size their clothing small. For the best fit, go up one size

Product Description

The Castelli Velocissima Women's Knickers marry warmth and luxurious comfort in a subtle aesthetic, making them ideally suited to your winter training needs. At once highly breathable, elegantly constructed and primed for longer days in the saddle, these are a winter wardrobe staple.

Investing in a top-tier pair of knickers for the winter months pays dividends not only in terms of performance gains but ride enjoyment. Uppers are often swapped and changed as conditions change but you’re unlikely to change your lower garment throughout the duration of a training ride, so it’s crucial to get a pair that keep your temperature regulated and ensure maximal comfort.

The Velocissima Knickers are a stalwart pair of tights, owing to the meticulous care and attention invested in their development and refinement by Castelli’s prestigious R & D team. Bred from a pedigree of tried, tested and widely lauded racing garments, the Velocissima Knickers take technical innovations and employ them to give you the best winter training experience.

The Thermoflex fabric utilised across the knickers is not only insulating but incredibly soft, owing to the optimal loft and refined composition that Castelli has employed. The brushed fleece inner is phenomenally warm but also allows freedom of movement on the bike. The Thermoflex fabric makes for optimal breathability so that as you transition from cooler starts to milder conditions your temperature remains just right.

The Kiss Air2 Donna seat pad employed in the Velocissima Knickers is custom made by Castelli and chosen by many professional racers for their training needs, due to its moisture management properties and slightly more low-profile padding than the Progretto X2 seat pad. Needless to say, the Kiss Air2 keeps you comfortable even on long days on the bike.

As you would expect from Castelli, every single detail of the Velocissima Knickers has been selected because it improves your ride experience. The YKK Camlock zippers on the ankle cuffs can be flipped upwards to lock the zipper in place, preventing it from unfastening mid-ride and exposing your ankles.

Key Features:

  • Thermoflex fabric for warmth, breathability and lasting insulation
  • Kiss Air2 Donna seat pad for luxurious comfort
  • YKK Camlock zippers keep the garment fastened securely on ankles
  • Reflective leg inserts and a muted, elegant overall aesthetic
  • Optimal temperature range 12˚C – 19˚C

Occasionally, without notice, manufacturers change product design and/or specifications.

Castelli Tights Sizing

Castelli Logo

Castelli Women's Tights Size Chart








87 cm

92 cm

97 cm

102 an

107 cm


75 cm

76 cm

77 cm

78 cm

79 cm


Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!

Cycling Tights Guide


Tights Guide

Whether you’re commuting, training, or racing, keeping your legs insulated is essential for your comfort and performance in the saddle. Cycling tights and knickers are a great way to keep warm on cooler rides.

Types of Tights

Tights vs Knickers

Knickers and tights are very similar it’s just the leg length that’s different. Knickers are ¾ length covering your thighs and knees while tights offer full leg coverage. Knickers have the advantage of keeping your knees warm without covering your full leg, so they’re great for riders who tend to overheat when wearing too much.

Tights are warmer than knickers as they cover your whole leg but the fabric makes a difference too. Both tights and knickers are available with different thermal properties which we’ll cover later.

Bib vs Waist Band

Regular tights and knickers are held up with an elasticated waist band while bib tights and knickers have straps that go over your shoulders. Bibs are generally considered to be the most comfortable option, especially on long rides. They may be a little less convenient to get on and off, but they stay in place without the need of a waist band to hold them in place. Bib shorts and tights are popular with pro cyclists for this reason.

Wide seamless bib straps or waist bands help to avoid chaffing so are more comfortable. Mesh straps will enhance breathability to keep you cool while brushed thermal bibs help you to retain body heat. Tights with a high cut panel on the core and up the back can act like an extra layer for the coldest rides.

Spring / Autumn Tights

For most of the year in the UK a pair of warm weather bib tights that offer light protection for use in double digit temperatures are ideal. These tights are usually made from slimline materials, often Lycra (without the added bulk of brushed fleece inner you see on winter tights). Both tights and knickers offer more protection for your knees than cycling shorts.

Water resistant, or splash proof fabrics like Endura’s DWR or Castelli’s NanoFlex are a good choice. These help to stop road spray from penetrating the tights, so you stay dry. Some tights offer additional weather protection on the shin and bum panels for this reason.

woman cycling in the city

Winter Tights

When the temperature drops into single digits, a pair of thicker winter bib tights are best. Fleece-lined thermal tights will keep you warm through all but the most extreme temperatures you’ll find in the UK. Thicker fabrics with a brushed ‘Roubaix’ inner lining help to trap warm air between your skin and the fabric. Look for bibs with a higher torso cut to help keep your body core warmer.

Windproof fabrics such as Gore Windstopper are good for really cold weather as they stop the wind from penetrating the fabric and chilling your skin.

man cycling in winter frost

Key Features


Fit is by far the most important factor in comfort when it comes to bib tights. Tights are constructed from several panels that are stitched together. Premium tights will come with more panels and strategic stitching for a better fit.

Pre-shaped areas (usually the knee) also improve fit when you’re on the bike while also reducing excess bulk.

two men cycling through the city


Most bib tights have a padded insert called a Chamois. This pad sits next to your skin and offers more comfort for your lower vitals, which is ideal on longer rides. Premium pads will utilise a multi-density construction for maximum comfort and ergonomics while you’re in the saddle.

chamois pad construction endura

Weatherproof Fabrics

Tights that have some water repellent properties are ideal for UK cycling. Shin and rear panels are most important as they will pick up the most road spray. Most manufacturers will treat their tights with some form of water repellent membrane to help water bead up and run off.

Windproof tights use front facing panels to help keep the wind chill out. Some manufacturers will also use multiple layers of fabric to shield your skin from the elements.

endura water repellent fabric


Thermal lycra panels will help to keep you warm in cold riding conditions. These fleece lined fabrics are excellent insulators and often have weatherproof properties too. Combining insulation, comfort and water repellency Castelli’s Nano Flex and Endura’s Thermoroubaix are great examples. These highly technical fabrics ensure your body heat stays within the fabric, while letting moisture escape out, so you don’t feel damp as you warm up.

cycling in deep winter


If you’re planning on cycling to work or fitness training in the evening, then added reflective elements are a bonus. More brand offer tights with reflective panels for low light conditions. Look for logos, stripes and graphics positioned on the thighs and around the ankles for maximum visibility.

Cycling at night in the city

Delivery & Guarantee

UK Delivery Information

International Deliveries – Temporarily Suspended 11/11/20

Note: We are still offering deliveries to the Isle of Man, Scottish Highlands, Scottish Islands, Channel Islands, Isle of Wight, Jersey and Guernsey. 

Courier Delivery update: Due to the COVID19 situation, we are currently experiencing some delays with deliveries. Our couriers are working around the clock to get your order to you as soon as possible but there is a potential delay of up to 48 hours . Please check your tracking on track your order here.

Please download the TNT Track and Trace App for iOS here and Android here so you can keep an eye on your delivery and any further updates.

Please note on the TNT tracking app it may show your delivery status as ‘Collecting’ (as per image below). This means your delivery has left our warehouse and is currently held at TNT main depot and there could be up to a 48 hour delay.

tnt delivery

Please keep checking the TNT tracking for further updates. On behalf of TNT we apologise for any delay and inconvenience this may cause. 

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.

Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

Please note that Pre-Order dates can sometimes change due to updated stock information.

Click here for more UK and international delivery information.

Returns & Warranty

It's easy to return a product with our 365 day, hassle free returns. 

We will give you a full refund on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

For more information please visit our Returns & Warranty page.