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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
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Description
2026 O'Brien Jr. Siege w/ Z9 Boot + RTPThe O'Brien Jr. Siege is the waterski built for any kid, from the fearless daredevil who's going to be burning turns within the first few days to those who like to take their time. Built with a forgiving fibreglass and polyurethane construction, O'Brien makes the Jr. Siege forgiving underfoot with a comfortable amount of flex to support skiing at beginner speeds but still stiff enough to turn a buoy in the course. The design principle on the shape of
The O'Brien Jr. Siege is the waterski built for any kid, from the fearless daredevil who's going to be burning turns within the first few days to those who like to take their time. Built with a forgiving fibreglass and polyurethane construction, O'Brien makes the Jr. Siege forgiving underfoot with a comfortable amount of flex to support skiing at beginner speeds but still stiff enough to turn a buoy in the course. The design principle on the shape of the Jr. Siege is designed to work with the core, creating a ski that will create edge turn and hold with ease while also creating consistent, comfortable and fast transitions in the turns. Altogether, the O'Brien has developed the perfectly rounded kids ski, one ski to rule them all.
The O'Brien X9 waterski boot is built with base-level comfort and ease in mind, taking the core components of a ski boot to make it easy for kids and adults alike. A simple neoprene liner sitting above a plush EVA footbed gives you comfort from underfoot all the way through to your upper ankle. Underneath this is O'Brien's signature superlite chassis that gives you the perfect weight balance with your ski.
Waterski Features
Rocker
- Flat Spot - Underneath your front foot gives you comfort and stability while also propping you up higher on a platform for control throughout your entire motion from cut to turn.
- Continuous Rocker - Through the tip and tail allows the ski to always provide a constant level of speed across the wash and allows for a smooth, comfortable turn, drive through the wash, while still having the ability to easily keep that speed into your leading edge.
Flex
- Flex Rating(1=Soft, 10=Stiff) - 5/10
Core
- Closed Cell PU Core – The most well-known core in waterskiing, with a tighter knit construction to reduce weight while remaining durable and providing a slightly softer feel meaning you can ski for longer, feeling less tired, while also getting more flex into turns and less rebound when crossing the wash
Laminates
- Fibreglass Laminates – The most forgiving top layer you can get, a simple fibreglass laminate allows the ski to provide a comfortable flex and smooth arcing turns.
Shape
- Small Defined Edge Bevel - This makes it easier to turn and lean into your edges and hold the edge through the wash.
Concave
- Rapid Response Tunnel - O'Briens signature tunnel shape designed to transition from edge to edge with ease and create easier hold through the turns
Other Features:
- Polished Speed Base - All about promoting greater water flow across the base of the ski to ultimately reduce drag
- Aluminium Adjustable Drop-In Fin
Level
- Riding Ability: Intermediate
- Ski Type: Cross-Over
- Ski Speeds: 32-34Mph
Size
- (59") - Up to 42Kgs
- (62") - 36-50Kgs
- (63.5") - 42-57Kgs
Warranty
- Limited Lifetime Manufacturer Warranty
Boot Features
Flex
- Mid Flex
Fit
- Plush EVA Footbed - Provides comfort underfoot so that you can ski all day long.
- Floating Toe - This allows for easy step-in entry as well as greater closure over the foot.
Liner & Lacing
- Neoprene lined - Sit snugly around your foot to maximise comfort
- Dual Zone Lacing
Baseplate
- Superlight Baseplate - Less weight, more powerful
Warranty
- 1 Year Manufacturer Warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Your makeup won't get ruined! ❤️
Size: 0.47 Ounce (Pack of 1)
I'm new to skincare and I didn't know we were supposed to wear sunscreen! 😱 Turns out it's arguably the most important step of skincare.
First, I like the texture of this sunscreen. It's not greasy, it's velvety and smooth. It feels nice on my skin.
I used this for the first time yesterday, and I just want those of you to know who are considering buying this, it applies well against makeup! That was one of my main concerns. I did my skincare with this sunscreen as a final step, then put on my makeup. The sunscreen acted as a primer, honestly, so I skipped primer. When I reapplied the sunscreen hours later, my makeup didn't smear! Instead I had a nice, healthy glow to my skin. I actually think it enhanced my makeup; my makeup seemed to last longer than usual. If you find yourself to be TOO glowy after a while, just apply a bit of translucent powder and your makeup will stretch even longer.
Bonus: It fits nicely in your purse! Good for people like me with a million things they insist on carrying around.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
★★★★★ 5
Works well when properly applied
Size: 3 Fl Oz (Pack of 1)
I try to always buy the highest SPF that I can find. This one fits the bill. If you apply it thoroughly all over and then reapply every few hours, you shouldn't get burned. I've worn it to the water park numerous times now. I have very sensitive skin, and it's given me no issues. I even put it on my face, just being careful not to get too close to my eye area. Once it absorbs into your skin, it doesn't feel too sticky like some other sunscreens can. Just be aware that it will leave a white residue on your bathing suit if you get it on there, but I've always been able to wash it out and that's a small price to pay for proper sun protection!
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Very good... with a comment.
Size: 3 Fl Oz (Pack of 1)
As a bald dude, I fine the fact that it is matt good. Check it before you leave or, if you use to much, looks like white face upon drydown and in dry areas. I like it. I do. And it protected me from the hot sun of the middle east. No burn.
Just needs a second check after about 10 minutes. But very good at what it does!!!
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Reviewed in the United States on June 3, 2026
★★★★★ 5
Excellent product.
Size: 3 Fl Oz (Pack of 1)
Excellent product. The sun is extremely strong where I live, and I've been using this for several days now; it lasts a very long time on the skin. However, if you have very sensitive skin, I wouldn't recommend using it on your face—in my case, it caused a breakout. But for the neck, body, and arms, it’s excellent. I highly recommend it, and it doesn't leave a bad feel on the skin or an unpleasant smell. If you use it in the water, it is recommended to reapply every hour and 20 minutes, otherwise you might get sunburned.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Daily Staple Sunscreen
Size: 3 Fl Oz (Pack of 1)
I’ve been really impressed with this sunscreen—it’s become a daily staple for my face and hands. The SPF 70 gives great peace of mind, especially with regular sun exposure, and it feels lightweight rather than heavy or greasy.
It absorbs quickly and doesn’t leave that thick white cast, which is a huge plus for everyday wear. On my face, it layers well under makeup without pilling, and on my hands, it doesn’t feel sticky or transfer onto everything I touch.
I also appreciate that it holds up well throughout the day without needing constant reapplication (unless I’m outside a lot). Overall, it’s a reliable, high-protection sunscreen that’s comfortable enough to use every day.
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Reviewed in the United States on April 28, 2026
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