Built for young riders who enjoy technical trails, bike parks, and fast-paced riding, the Fox Sidecut Youth Long Sleeve Mountain Bike Jersey combines lightweight comfort with coverage for active days on the bike. Its youth-specific design supports a natural riding position while helping protect the arms from trail brush, branches, and direct sun.
This youth long sleeve mountain bike jersey is made from a performance blend of 95% polyester and 5% spandex. The fabric is lightweight, durable, and flexible, helping the jersey move with the rider during climbs, turns, jumps, and technical descents. Four-way stretch construction provides mobility without making the MTB top feel restrictive when reaching for the handlebars or shifting body position.
The athletic youth fit is shaped for mountain biking and includes an extended drop-tail hem. This added length helps provide coverage while riding in a forward position and helps keep the jersey in place through active trail sessions. The long sleeve cut offers additional arm coverage compared with a short sleeve MTB shirt, making it suitable for changing conditions and exposed trail sections.
Breathable, quick-drying fabric helps move moisture away from the skin during warm-weather rides and demanding climbs. The material is designed to support airflow and comfort when young riders are working hard, while its quick-drying properties help the jersey feel more comfortable after sweat and changing trail conditions. This makes it a practical choice for regular MTB, BMX, and outdoor riding use.
The Fox Sidecut design adds a distinctive look to everyday MTB gear while fade-resistant graphics help maintain the appearance of the jersey ride after ride. It works as a boys MTB top, kids MTB top, or youth trail jersey for riders who spend time on singletrack, bike park trails, and downhill routes.
Its long sleeve coverage and flexible construction also make it suitable for a range of riding disciplines. Use it as boys downhill gear for gravity-focused sessions, kids enduro gear for varied terrain, or a breathable BMX racing jersey for practice and race-day preparation. The design provides the coverage and movement young riders need without adding unnecessary bulk.
From casual trail rides to demanding enduro and downhill sessions, the Fox Sidecut Youth Long Sleeve Mountain Bike Jersey gives young riders a flexible MTB shirt designed for movement, coverage, and everyday trail comfort.
| Size | Back Length | Front Length | Bust | Shoulder | ||||
|---|---|---|---|---|---|---|---|---|
| CM | INCH | CM | INCH | CM | INCH | CM | INCH | |
| S | 52 | 20.5" | 50 | 19.7" | 36 | 14.2" | 31 | 12.2" |
| M | 55 | 21.7" | 53 | 20.9" | 38 | 15.0" | 33 | 13.0" |
| L | 58 | 22.8" | 56 | 22.0" | 41 | 16.1" | 35 | 13.8" |
| XL | 61 | 24.0" | 59 | 23.2" | 43 | 16.9" | 37 | 14.6" |
| 2XL | 64 | 25.2" | 62 | 24.4" | 46 | 18.1" | 39 | 15.4" |
| 3XL | 67 | 26.4" | 65 | 25.6" | 48 | 18.9" | 41 | 16.1" |
