Built for young riders who enjoy every climb, berm, and technical descent, the Alpinestars Cobalt Blaze Youth Short Sleeve Mountain Bike Jersey combines lightweight comfort with trail-ready performance. This youth MTB jersey helps keep riders cool and focused during mountain biking, BMX, Enduro, and downhill sessions.
The short sleeve design promotes airflow while maintaining comfortable coverage in an active riding position. Whether your child is practicing skills at the local trail, lining up for BMX racing, or exploring a singletrack route, this youth MTB shirt provides dependable comfort from the first pedal stroke to the final descent.
Made from a 95% polyester and 5% spandex performance blend, the Cobalt Blaze jersey offers a practical balance of durability, stretch, and lightweight wearability. The breathable fabric helps move moisture away from the skin, while its quick-drying construction supports a cooler, drier feel when the pace increases or the weather changes.
The 4-way stretch material moves with the body through cornering, climbing, jumping, and technical handling. This flexible construction helps young riders maintain a natural range of motion without feeling restricted through the shoulders or arms.
Designed with a youth athletic fit, this boys MTB shirt provides a comfortable shape for active riding without unnecessary bulk. The extended drop-tail hem adds coverage while riding in a forward position, helping the jersey stay comfortable during steep climbs and aggressive downhill sections.
Short sleeves provide ventilation and allow unhindered steering control, making this kids mountain bike jersey a versatile choice for warm-weather trail rides, bike parks, Enduro practice, and BMX training. The fit also works well over lightweight protective layers when additional coverage is needed.
The Cobalt Blaze design features fade-resistant graphics that help maintain a clean, energetic appearance ride after ride. From regular practice sessions to weekend trail adventures, the graphics are made to complement an active MTB lifestyle while giving young riders a distinctive look on the trail.
As a versatile kids MTB top, it pairs easily with riding shorts, protective equipment, gloves, and other essential MTB gear. Its lightweight feel makes it suitable for everyday riding, while its durable performance blend is ready for demanding terrain and repeated use.
This youth short sleeve mountain bike jersey is suited to a wide range of riding styles. It works as a boys trail jersey for singletrack adventures, a kids Enduro jersey for varied terrain, or a youth downhill jersey for bike park sessions. It is also a practical BMX jersey for racing practice and skill development.
For young cyclists looking for comfortable, flexible, and durable trail gear, the Alpinestars Cobalt Blaze Youth Short Sleeve Mountain Bike Jersey is ready for everyday rides and ambitious off-road adventures.
| 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" |
