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Castelli Insider Jersey - XL
  • £57.99
  • RRP £90.00
  • Saving you £36

The lightest jersey we've ever made is ideal for your cybersport suffer sessions. 3D Mesh lightweight 93% polyester / 7% elastane wicks moisture and dries quickly HEIQ Fresh Tech silver free odor control treatment Semi open mesh allows maximum air flow without becoming too transparent Full length zip makes for easy on and off 2 rear pockets for stashing whatever you need Can be used as hot weather outdoor jersey. INDOOR TRAINING NEVER LOOKED THIS GOOD We made this jersey for the rigors of indoor training. The 3D Mesh fabric allows maximum airflow for cooling while wicking away moisture to keep you dry. We made it on the limit of not being too transparent in case you want to wear it for group training sessions, or if you're using it at home and want to take it off after warming up the long zipper means it comes off easy.We put a couple of pockets on the back so you can stash your AirPods or phone or headband or whatever you haul to your training station. We've kept the collar low and the waist short for maximum cooling. It just happens to be a great hot weather jersey that you'll pull back out come August.

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Castelli Insider Short Sleeve - S
  • £44.99
  • RRP £70.00
  • Saving you £36

The lightest jersey we've ever made is ideal for your cybersport suffer sessions. 3D Mesh lightweight 93% polyester / 7% elastane wicks moisture and dries quickly HEIQ Fresh Tech silver free odor control treatment Semi open mesh allows maximum air flow without becoming too transparent Full length zip makes for easy on and off 2 rear pockets for stashing whatever you need Can be used as hot weather outdoor jersey. INDOOR TRAINING NEVER LOOKED THIS GOOD We made this jersey for the rigors of indoor training. The 3D Mesh fabric allows maximum airflow for cooling while wicking away moisture to keep you dry. We made it on the limit of not being too transparent in case you want to wear it for group training sessions, or if you're using it at home and want to take it off after warming up the long zipper means it comes off easy.We put a couple of pockets on the back so you can stash your AirPods or phone or headband or whatever you haul to your training station. We've kept the collar low and the waist short for maximum cooling. It just happens to be a great hot weather jersey that you'll pull back out come August.

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Castelli Insider Short Sleeve - M
  • £48.99
  • RRP £70.00
  • Saving you £30

The lightest jersey we've ever made is ideal for your cybersport suffer sessions. 3D Mesh lightweight 93% polyester / 7% elastane wicks moisture and dries quickly HEIQ Fresh Tech silver free odor control treatment Semi open mesh allows maximum air flow without becoming too transparent Full length zip makes for easy on and off 2 rear pockets for stashing whatever you need Can be used as hot weather outdoor jersey. INDOOR TRAINING NEVER LOOKED THIS GOOD We made this jersey for the rigors of indoor training. The 3D Mesh fabric allows maximum airflow for cooling while wicking away moisture to keep you dry. We made it on the limit of not being too transparent in case you want to wear it for group training sessions, or if you're using it at home and want to take it off after warming up the long zipper means it comes off easy.We put a couple of pockets on the back so you can stash your AirPods or phone or headband or whatever you haul to your training station. We've kept the collar low and the waist short for maximum cooling. It just happens to be a great hot weather jersey that you'll pull back out come August.

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Castelli Insider Short Sleeve - L
  • £44.99
  • RRP £70.00
  • Saving you £36

The lightest jersey we've ever made is ideal for your cybersport suffer sessions. 3D Mesh lightweight 93% polyester / 7% elastane wicks moisture and dries quickly HEIQ Fresh Tech silver free odor control treatment Semi open mesh allows maximum air flow without becoming too transparent Full length zip makes for easy on and off 2 rear pockets for stashing whatever you need Can be used as hot weather outdoor jersey. INDOOR TRAINING NEVER LOOKED THIS GOOD We made this jersey for the rigors of indoor training. The 3D Mesh fabric allows maximum airflow for cooling while wicking away moisture to keep you dry. We made it on the limit of not being too transparent in case you want to wear it for group training sessions, or if you're using it at home and want to take it off after warming up the long zipper means it comes off easy.We put a couple of pockets on the back so you can stash your AirPods or phone or headband or whatever you haul to your training station. We've kept the collar low and the waist short for maximum cooling. It just happens to be a great hot weather jersey that you'll pull back out come August.

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Castelli Insider Short Sleeve - XL
  • £44.99
  • RRP £70.00
  • Saving you £36

The lightest jersey we've ever made is ideal for your cybersport suffer sessions. 3D Mesh lightweight 93% polyester / 7% elastane wicks moisture and dries quickly HEIQ Fresh Tech silver free odor control treatment Semi open mesh allows maximum air flow without becoming too transparent Full length zip makes for easy on and off 2 rear pockets for stashing whatever you need Can be used as hot weather outdoor jersey. INDOOR TRAINING NEVER LOOKED THIS GOOD We made this jersey for the rigors of indoor training. The 3D Mesh fabric allows maximum airflow for cooling while wicking away moisture to keep you dry. We made it on the limit of not being too transparent in case you want to wear it for group training sessions, or if you're using it at home and want to take it off after warming up the long zipper means it comes off easy.We put a couple of pockets on the back so you can stash your AirPods or phone or headband or whatever you haul to your training station. We've kept the collar low and the waist short for maximum cooling. It just happens to be a great hot weather jersey that you'll pull back out come August.

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Castelli Insider Jersey Jerseys
  • £41.25
  • RRP £75.00
  • Saving you £45

Indoor training is a brilliant way to get a focused training session done without having to battle traffic, junctions and foul weather. However, standard cycling kit isn't necessarily tailored towards the unique environment and demands of indoor training - that is until now, with the Insider Jersey engineered to take on both heat and sweat. The semi-open mesh fabric is just on the verge of transparency, maximising airflow without affecting modesty, ideal for a group training session for instance. It's also quick to wick away sweat before it pools uncomfortably on the skin and it's quick-drying too for greater comfort as you cool down after your efforts. A full-length zipper makes control of extra ventilation easy and if you do want to strip off after warm-up then it's nice and easy to do so.  Two pockets on the back make stashing a smartphone, or headband or nutrition easy, whatever you need for a good training session. A low collar and short waist mean enhanced airflow too. While it's designed for indoor training don't let that stop you from pulling it on for a scorching hot summer ride outdoors too, it's the ideal jersey for any cycling situation where heat is a major factor.

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Castelli Insider Bib Shorts Bib Shorts
  • £58.50
  • RRP £130.00
  • Saving you £55

For the Insider Bib Shorts, Castelli have used their inferno fabric, this lightweight material is quick to draw moisture off the skin, avoiding discomfort from sweat build-up and it won't get wetted out either so avoids cold clamminess as you cool down. Continuing the lightweight theme the shorts feature the Giro Air leg grippers, raw-cut edges and vertical silicone grippers hold firm without exerting too much pressure.  Hard intervals efforts will have you breathing deeply but thanks to the extra-stretchy Doppio waistband you'll always feel unrestricted. The shorter timescales of indoor training don't call for the thickest of pads, instead, the slimmer and lighter Kiss Air2 seat pad keeps comfort levels high but optimises breathability and moisture control, ideal for all your harder interval sessions. If you're short of time or don't relish battling traffic and cold dark evenings, then why not pull on your Insider Bib Shorts and enjoy a hard indoor training session to keep your fitness building during winter - while the legs are screaming you'll still enjoy perfect Castelli comfort.    

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Castelli Women's Insider Short Waist Shorts
  • £71.50
  • RRP £110.00
  • Saving you £35

Even with an electric fan on full blast, the efforts of a tough training session on the turbo trainer will soon have you building a sweat. This is why the Women’s Insider Shorts have been designed to be as light as possible and to be as breathable as possible, with no superfluous details needed. Castelli makes use of lightweight 195 g/m² Lycra® for the body. This keeps bulk down, flexibility up and the excellent breathability needed to deal with your efforts. There are also mesh side panels, allowing for the cooling effect of extra airflow to come into play. The raw-cut leg endings continue the minimalist theme, offering a smooth and comfortable fit without excess bulk. Inside the shorts, the Women’s specific Progetto X² Air Skin seat pad is ideally suited to indoor training, with excellent moisture control and a super-soft next to skin layer.

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Castelli Insider 2 Bib Shorts Bib Shorts
  • £91.00
  • RRP £140.00
  • Saving you £35

Even with an electric fan on full blast, the efforts of a tough training session on the turbo trainer will soon have you building a sweat. This is why the Insider 2 Bib Shorts have been designed to be as light as possible and to be as breathable as possible, with no superfluous details needed. Castelli makes use of lightweight 195 g/m² Lycra® for the body. This keeps bulk down, flexibility up and the excellent breathability needed to deal with your efforts. There are also mesh side panels, allowing for the cooling effect of extra airflow to come into play. Bib straps are kept minimalist, with an open-knit design aiding breathability. The raw-cut leg endings continue the minimalist theme, offering a smooth and comfortable fit without excess bulk. Inside the shorts, the Progetto X² Air Skin seat pad is ideally suited to indoor training, with excellent moisture control and a super-soft next to skin layer.

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Castelli Insider Short Waist Shorts
  • £74.25
  • RRP £110.00
  • Saving you £33

Even with an electric fan on full blast, the efforts of a tough training session on the turbo trainer will soon have you building a sweat. This is why the Insider Shorts have been designed to be as light as possible and to be as breathable as possible, with no superfluous details needed. Castelli makes use of lightweight 195 g/m² Lycra® for the body. This keeps bulk down, flexibility up and with the excellent breathability needed to deal with your efforts. There are also mesh side panels, allowing for the cooling effect of extra airflow to come into play. The raw-cut leg endings continue the minimalist theme, offering a smooth and comfortable fit without excess bulk. Inside the shorts, the Progetto X² Air Skin seat pad is ideally suited to indoor training, with excellent moisture control and a super-soft next to skin layer.

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Castelli Women's Insider Sleeveless Jerseys
  • £45.50
  • RRP £72.00
  • Saving you £37

Incredibly effective. But incredibly sweaty. Indoor training and indoor racing are great for incredibly focused fitness gains. However, the heat can be a challenge, even with a good electric fan. The Insider Sleeveless Jersey is Castelli’s answer to those unique demands of your pain cave. The first thing to notice is the lack of weight. Incredibly light, at just 43 grams, it’s designed to feel as if it’s almost not there. Next, a 3D mesh construction allows maximum airflow to your body while also spreading sweat over a large surface area. Turn your fan up and you’ll feel the effects of the 3D mesh, speeding up the cooling effect of sweat evaporation. It’s quick to wick away excess sweat too. This will prevent you from feeling drenched as your efforts swing from high-intensity efforts and rest periods. With its HEIQ Fresh Tech silver-free odour control treatment, you can be sure even the toughest of training sessions won’t leave a nasty smell. There’s also a rear pocket, handy space to stash a gel or two or a music player.

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Castelli Insider Sleeveless Jersey Jerseys
  • £42.00
  • RRP £70.00
  • Saving you £40

Incredibly effective. But incredibly sweaty. Indoor training and racing are great for incredibly focused fitness gains. However, the heat can be a challenge, even with a good electric fan. The Insider Sleeveless Jersey is Castelli’s answer to those unique demands of your pain cave. The first thing to notice is the lack of weight. Incredibly light, at just 52 grams, it’s designed to feel as if it’s almost not there. Next, a 3D mesh construction allows maximum airflow to your body while also spreading sweat over a large surface area. Turn your fan up and you’ll feel the effects of the 3D mesh, speeding up the cooling effect of sweat evaporation. It’s quick to wick away excess sweat too. This will prevent you from feeling drenched as your efforts swing from high-intensity efforts and rest periods. With its HEIQ Fresh Tech silver-free odour control treatment, you can be sure even the toughest of training sessions won’t leave a nasty smell. There’s also a rear pocket, handy space to stash a gel or two or a music player.

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