Built for young riders who enjoy fast laps, technical trails, and challenging terrain, the Trek Racing Youth Long Sleeve Mountain Bike Jersey combines lightweight comfort with dependable coverage. This youth long sleeve mountain bike jersey is designed for mountain biking, BMX racing, trail riding, enduro, downhill, and singletrack sessions.
The jersey uses a performance blend of 95% polyester and 5% spandex. The fabric is lightweight, durable, and flexible, helping young riders stay comfortable while climbing, cornering, and moving through demanding sections of trail. Its four-way stretch construction supports a natural range of motion without making the MTB shirt feel restrictive.
Breathable, moisture-wicking fabric helps move perspiration away from the skin and encourages quicker drying during active rides. This moisture management is useful during steep climbs, warm-weather practice sessions, and changing trail conditions. The long sleeve design provides additional arm coverage from sunlight, brush, branches, and trail debris while maintaining a comfortable feel.
As a versatile MTB top, the jersey works well over a base layer or as a standalone riding shirt. The youth-specific athletic fit is shaped for movement and helps reduce excess fabric while riding in an active position. An extended drop-tail hem adds coverage at the back, helping the jersey stay in place when young riders lean forward on climbs or descend technical terrain.
The Trek Racing design gives this boys MTB top a distinctive race-inspired appearance for practice days, bike park sessions, and weekend trail outings. Fade-resistant graphics help maintain the jersey’s visual character through regular riding and care. The design suits riders looking for boys MTB gear that can transition between trail, BMX, enduro, and downhill activities.
For kids enduro riding, the flexible fabric supports body movement through berms, drops, and uneven ground. During downhill sessions, the long sleeves add useful coverage while the breathable construction helps prevent a heavy or restrictive feel. It is also a practical choice for BMX racing, where riders need an MTB shirt that supports quick movement and comfortable handling.
This youth long sleeve mountain bike jersey is made for regular use across a range of riding environments. It can be worn for trail practice, enduro training, downhill runs, BMX racing, and casual bike-focused activities. The combination of stretch, breathability, moisture control, and extended coverage makes it a functional part of a young rider’s MTB gear collection.
With its youth-focused fit and trail-ready construction, the Trek Racing Youth Long Sleeve Mountain Bike Jersey provides comfortable coverage for developing riders across varied terrain and riding styles.
| 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" |
