Name: 2026 Lange RSJ 65 Ski Boot
Brand: Lange
SKU: 25794
Price: 159.0 USD
Availability: InStock

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$275.00 $159.00 Save 42%

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RACE PLACE has been authorized to offer special RACER PRICING on current season RACE SKIS, BOOTS and BINDINGS to all ski racers actively participating in USSA, FIS, College, High School, Nastar or Club Events.

**Discounted pricing is restricted to skis, boot and bindings.**

Selecting the correct ski boot is one of the most important equipment decisions a racer can make. A properly fitted race boot improves control, edge engagement, power transfer, and comfort while helping athletes develop strong technical skills. This guide explains how to determine both the correct boot flex and Mondopoint size for alpine ski racing.

Quick Navigation: Boot Flex | Boot Size | Fit Notes

Determining Ski Boot Flex

Ski boot flex refers to how much resistance a boot provides when the skier flexes forward. In general, heavier and more aggressive racers require stiffer boots, while lighter or less experienced athletes benefit from a softer flex that is easier to bend and control.

A useful starting point is to compare racer weight to the recommended flex range below. Most racers perform best when their body weight is approximately 10–30 pounds higher than the flex rating of the boot. Skill level, strength, terrain, discipline, and personal preference can all influence the ideal choice.

Race Place Tip: These recommendations are intended as general guidelines. Consult your coach, boot fitter, or Race Place ski expert for personalized recommendations. Ski boot flex ratings can vary significantly between manufacturers.

Ski Boot Flex Recommendations

Racer Weight (lbs)	Racer Weight (kg)	Recommended Flex
50–80	23–36	65
80–100	36–45	70
100–120	45–54	90
120–150	54–68	110
130–160	60–73	120
150+	68+	130–140

Determining Your Ski Boot Size

Ski boots use the Mondopoint (MP) sizing system, which measures foot length in centimeters. Unlike street shoe sizes, Mondopoint sizing provides a more precise measurement for ski boot fitting.

For the most accurate measurement, stand with your heel against a wall and measure from the wall to the tip of your longest toe in centimeters. The resulting measurement is your approximate Mondopoint size.

Because race boots are designed for maximum precision and responsiveness, many racers choose a close-performance fit. Actual fit can vary slightly between brands and models, so we recommend trying on a similar boot whenever possible.

Mondopoint Ski Boot Size Chart

Mondopoint (cm)	Europe	Men's US	Women's US	Kids' US
18.0	28.5	—	—	11.5
18.5	29	—	—	12
19.0	30	—	—	12.5
19.5	30.5	1	—	13
20.0	31	1.5	—	13.5
20.5	32	2	—	1
21.0	33	2.5	—	2
21.5	34	3	—	3
22.0	35	4	5	4
22.5	36	4.5	5.5	—
23.0	36.5	5	6	—
23.5	37	5.5	6.5	—
24.0	38	6	7	—
24.5	38.5	6.5	7.5	—
25.0	39	7	8	—
25.5	40	7.5	8.5	—
26.0	40.5	8	9	—
26.5	41	8.5	9.5	—
27.0	42	9	10	—
27.5	42.5	9.5	10.5	—
28.0	43	10	11	—
28.5	44	10.5	11.5	—
29.0	44.5	11	—	—
29.5	45	11.5	—	—

Race Place Fit Notes

Junior racers often benefit more from a properly fitting boot than a stiffer boot.
A race boot should fit snugly without causing pain or restricting circulation.
Performance-oriented race fits typically feel tighter than recreational ski boots.
Boot flex ratings are not standardized and can vary between manufacturers.
Professional boot fitting can significantly improve comfort, performance, and long-term development.

US Mainland Ground - $25 Flat Shipping Rate (per pair)
Express & International Calculated at Checkout
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Description & Features

The easy flexing boot for junior racers and all-mountain skiers, the RSJ 65 offers the perfect blend of comfort and performance for skiers ages 12 and under. The junior mono-injection shell, Control Fit liner, and four-buckle design address the junior fit for smaller calves and foot shapes to deliver enhanced junior-specific comfort, warmth and performance.

Features

Junior Race Ski Boot
65 Flex Index
Mono Injection Shell
Junior Last
Junior Liner
4 Micro-adjustable Aluminum Buckles
30mm Power Strap

Technical Info

ALUMINUM BUCKLES

The aluminum buckles on the Junior boots offer increased strength for efficient closure and increased durability.

JUNIOR FIT

The fit of the shell and liner have been specially designed to adapt to small calves
for improved comfort.

EASY STEP INSERT

A softer plastic insert molded over the instep area, allows easier opening of the boot overlap for more comfortable entry and exit.

POLYURETHANE/POLYOLEFIN SHELL

Polyurethane (PU) plastic offers premium rebound, response, and durability, while the polyolefin cuff keeps junior boots light and resistant while also improving flexibility.

ADJUSTABLE FLEX

Adjust boot flex via removable rear cuff screws for easy customization for enhanced comfort and performance.

Back to Race Ski Boots

2026 Lange RSJ 65 Ski Boot