US Outdoor Store
US Outdoor Store

Tecnica JT 4 Boot - Kid's

SKU: 30132100100
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Tecnica JT 4 Boot - Kid's


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Start those junior skiers off strong with the complete package of boots in the Tecnica JT 4 Boot. Supportive, warm, and comfortable, these boots are literally starting little skiers on the right foot. Featuring an extremely comfortable shell and cuff with 4 security buckles, these boots are intuitive and straight forward. Simple to put on and take off with comfort to last all day long, the JT 4 will have your little one eager to hit the slopes all year round.


  • Flex Index: 50
  • Buckle: 4 plastic with ring
  • Cuff: Polyolefine
  • Shell: Polyolefine
  • Liner: JUNIOR PRO
  • Soles: ISO 5355 - Chidren norm: 180-215; Adult norm: 220-275




Most ski boots share a common construction—a durable outer shell made of hard plastic for stability and support and an inner liner for cushioning and comfort.

Most boots also feature a similar entry and front-overlap shell design with adjustable buckles to dial in your fit. (There are, however, a few alternative designs like rear-entry boots and the three-piece model originally popularized by the Raichle Flexon with its iconic ribbed tongue.
Kids’ boots sometimes feature rear-entry design for convenience, while three-piece models have experienced somewhat of a resurrection, especially in Full Tilt ’s lineup.)

Liner technology has evolved as boot technology and fit has improved. An entry-level liner will provide traditional fit and comfort for your feet and will compress or “pack out” over time, leaving more room in your boot. This is fine to the extent that it provides a more custom fit, but if it
becomes too packed out, you may lose performance.

Boots may also feature thermoformable liners which take advantage of your own body heat to mold quickly to your foot and offer a more precise fit. Some boot models feature custom moldable liners as well, which are heated using an external source before being fitted to your
feet. This can be done at home, but the best results are typically achieved with a qualified boot fitter.


A boot’s flex affects how efficiently it transfers power from you to your ski, so manufacturers rate ski boots according to a flex index. Stiffer boots transfer power more efficiently to your skis and rank higher on the flex index while softer boots aren’t as precise and rank lower.

Note: While the flex index is a general guideline, indices may vary between manufacturers. We recommend coming to U.S. Outdoor or calling us to talk to our qualified boot fitters to determine what flex is best for you.


Downhill Ski Boots are measured using Mondo Point sizing (typically known simply as Mondo sizing), which refers to the length of the inside of the boot’s shell (from heel to toe) in centimeters. The following chart provides a rough conversion to US street shoe sizing.
Tecnica JT 4 Boot - Kid's Colors Available:


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