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Founded by athletes with a passion for performance

Complimentary worldwide delivery on all orders over £150



Use this to convert between standard size formats

Chest 35 - 37 37 - 39 39 - 41 42+
Back length 29.5 30.1 30.6 31.2
Front length 27 27.5 27.5 28
Chest 98 103 108 113+
Back length 75 76.5 78 80
Front length 68 69.5 71 72.5
The Espin Vest is cut from a single piece of cloth giving a pro-performance fit and eliminating excess fabric whilst optimising freedom of movement.

Navy/White Espin Vest


  • (6)

The lightest vest in the world today, the Espin is designed for athletes who value performance and style in equal measure. Sporting the traditional Castore bonded seams for maximum endurance and patented laser cut designed for enhanced ventilation, you will never want to wear another vest again.

  • s
  • m
  • l
  • xl

View size charts




With a patented sonic welded construction that minimising fabric wastage and strategically mapped laser cut holes to optimise ventilation, the Espin has been uniquely designed to merge with the athlete and maximise performance.

Additional features include full anti-odour protection that reduces emissions from regular washing, four way fabric flexibility for optimal movement and rapid drying technology to keep athletes training hard no matter what the conditions.

With an innovative new back paneling construction from the award winning Castore design team, the Espin outperforms on both style and substance.

Product details

After months of development and testing, the Espin vest is treated with an advanced Polygiene treatment which guarantees anti-microbial protection for the lifetime of the garment. Polygiene utilises recycled silver to tackle odour producing bacteria at source to keep you stench free. Polygiene does not interfere with the bodies natural bacteria equibirium. Allowing you to pack light and train harder.

Laser cut holes placed in strategically body mapped sweat zones provide impeccable moisture transfer and enhanced drying time, allowing you to train longer and harder. Complimented by the unique honeycomb structure of our warp knit fabric which evaporates moisture before it turns to sweat.

The tridimensional structure of our fabric allows for a slim, athletic cut providing an enhanced range of motion in all environments. The Hoddle tee has been tailored to an athletes profile, eliminating excess fabric to act as a second skin and providing the aerodynamic benefits of a streamlined cut. We have also incorporated a curved dropped hem and raglan sleeves allowing for the ultimate athletic fit.

Welded seam construction
Lifetime odour resistance
Quick drying
Moisture wicking
Tri-dimensional stretch fabric

Laser cut bonded thumb holes
Laser cut holes for added ventilation
Raglan sleeves
Crew neck
Castore Ergonomic fit

Reflective elements
Hidden bonded credit card pocket
Enhanced dropped hem
UPF 50+ protection
Non iron

Eco-system certified

Fabric composition

Body: 72% Polyamide/ 28% Elastane

Trim: 100% Polyester





Washing instructions

Machine wash cool (30°)

Wash dark colours separately

Do not use fabric softeners

Do Not Tumble Dry

Cool iron (one dot)

Do not bleach

Do not dry clean


  • Completing the range

    Laurent G - May 11, 2017

    Striking design, super comfortable and doesn't smell after being sat in the office locker for 4 days. Quite pricey for a vest but the attention to detail and quality of the fabric more than justifies this.

  • Great detail

    Thomas Beldin - May 18, 2017

    Great fit and love the contrast on the back

  • Favourite garment

    Tomas K - May 19, 2017

    Love the contrast colourways and super light

  • Great product and brand

    Ellis S - May 29, 2017

    Ordered from the US and it arrived next working ay in lovely packaging and hand written note. The product itself is top draw.

  • Fits like a dream

    Thomas H - May 31, 2017

    Best in the market

  • Great brand

    Marcus - July 14, 2017

    Great product with super stylish details. Fed up of buying rubbish gym clothes so gave Castore a go and I am super impressed. Ordered a M in the vest and a L in the tee (as I have quite big arms) and both fit really nicely