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Sportful Sportful R&D Long-Sleeve Wind Jersey

Sale $126.47 $229.95 45% off

Item # STF0051

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Item # STF0051

Straight from the lab.

Sportful's team of captive scientists — err, willing and hardworking researchers, we mean — spent months hidden away in their underground lab researching and constructing the R&D Long-Sleeve Wind Jersey. Fabrics this technically advanced don't just come together naturally, so we're grateful that the team put in the time and effort to make the R&D one of the most advanced wind jerseys out there.

It's meant for riding in cool fall weather, but if you layer properly the R&D will work well as a winter layer, too. Polartec Alpha fabric at the front cuts the wind and traps heat, while the WindShield panel at the rear prevents gusts from blowing over your shoulders and sucking the warmth away from your back, which is actually where most wind-induced heat loss occurs. Both fabrics wick moisture extremely efficiently, and are complemented by stretch mesh side panels that increase breathability and mobility.

The eggheads at Sportful are clearly cyclists themselves, because there's no other explanation for the R&D's nearly perfect array of details, like three large stretchy back pockets that sit on an independent panel to increase support or the generous thumb loops that seal in heat and seal out drafts. A wind flap covers the YKK Vislon zipper to complete the windproofing, and an additional side pocket provides secure storage and easy access to key items like phones. Reflective rear details add safety to your low-light rides, and a silicone gripper elastic at the waist locks the R&D in place so you don't expose skin.

Tech Specs

[front] Polartec Alpha, [shoulders, arms] WindShield, [sides] stretch mesh
3 back, 1 side
Recommended Use:
cold-weather cycling
Manufacturer Warranty:

Size chart


 Men's Apparel
 Small Medium Large X-Large  2X-Large3X-Large
Chest  35.5 - 37in
(90.2 - 94.0cm)
 37 - 38.5in
(94.0 - 97.8cm)
 39 - 41in
(99.1 - 104.1cm)
 41 - 43in
(104.1 - 109.2cm)
 43 - 45in
(109.2 - 114.3cm)
 45 - 47in
(114.3 - 119.4cm)
Waist  29.5 - 31.5in
(74.9 - 80.0cm)
 31 - 33in
(78.7 - 83.8cm)
 33 - 35.5in
(83.8 - 90.2cm)
 35.5 - 37.5in
(90.2 - 95.3cm)
 38.5 - 40.5in
(97.8 - 102.9cm)
 41 - 43in
(104.1 - 109.2cm)
 Hips  36.5 - 38.5in
(92.7 - 97.8cm)
 38 - 40in
(96.5 - 101.6cm)
 40 - 42in
(101.6 - 106.7cm)
 42 - 44in
(106.7 - 111.8cm)
 44 - 46in
(111.8 - 116.8cm)
 46 - 48in
(116.8 - 121.9cm)
Inseam  31.5in
How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
Natural Waist:
Measure around your natural waistline, keeping the tape a bit loose.
Measure around the fullest part of your body at the top of your legs.
Using pants that fit well, measure the crotch seam to the bottom of the leg.

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