2026 O'Brien Jr. Siege w/ Z9 Boot + RTP
SKU: 603467130

2026 O'Brien Jr. Siege w/ Z9 Boot + RTP

Sale price$405.00 Regular price$450.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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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:
      1. 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
      SKU: 603467130

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      4.7 ★★★★★
      Based on 1987 reviews
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      Verified Purchase
      Sonja
      West Palm Beach, US
      ★★★★★ 4
      Nice, but almost feels faux to me
      Size: 2' x 6' (Sheepskin shape), Color: Pink, Size: 2' x 6' (Sheepskin shape), Color: Pink
      I like it, but it says it’s real, and I believe them, but it feels like it is faux. I’ve owned a fake one before and it feels similar. Please know I am not saying it is not real. I guess the fake was well done! It’s super long and I am still on the fence if I want it this long. I’ve taken a pic here, but right now it is wrapped in the package in case I need to return. It is soft and pretty, but I’m not sure that Barbie pink is my best choice lol. Usually I would pair it with a mid century modern bedspread that is chenille, with a little pink so it works well but not too matchy matchy. I wish I had taken a pic with that bedspread because the bit of pink on the bedspread looks very nice against the rug. So let me apologize for having it with an ugly bedspread.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on August 21, 2025
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      Verified Purchase
      J. L. Abbott
      Chelsea, US
      ★★★★★ 5
      This is a wonderful sheepskin
      Size: 2' x 3' (Sheepskin shape), Color: Creamy White
      This sheepskin is so soft and comfortable. I use it on my couch and it really helped me stay warm in the winter months. Super glad I bought it. My cat loves it too
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 13, 2026
      D
      Verified Purchase
      David
      San Leandro, US
      ★★★★★ 5
      Exceeded expectations in every way.
      Size: 2' x 3' (Sheepskin shape), Color: Gray Tip, Size: 2' x 3' (Sheepskin shape), Color: Gray Tip
      I purchased a pair of these a week apart, because the price seemed too good to be true. Instead, they have exceeded my expectations. I own a Buick with leather seats that look incredible, but are not comfortable on long trips, and my wife and I were preparing to leave on a 2200 mile round trip vacation. On the first day, we drove 700 miles, much of it through desert. We were tired when we reached our destination, but comfortable and cool for every mile of it. The sheepskins have made such a difference, that I have never removed them from the car. It is now July, with triple digit temperatures every day, surrounded by desert. The sheepskin keep us cool on every drive. I could have purchased sheepskin seat covers, but these provide the same comfort for a fraction of the cost. Yes, it takes a small amount of effort to adjust them when you first get into the car, but I don't even think about it any more. As far as the quality, there is no shedding, no smell, and no discoloration. We have put over 4,000 miles on the car since I put these in, and I have no complaints to register.
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      Reviewed in the United States on July 18, 2025
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      April M. Lomax
      Battle Creek, US
      ★★★★★ 5
      BEAUTIFUL * SOFT * THICK AND LUXURIOUS
      Size: 2' x 6' (Sheepskin Pelt Patchwork), Color: Wolf Tipped, Size: 2' x 6' (Sheepskin Pelt Patchwork), Color: Wolf Tipped
      I’m absolutely thrilled with this large sheepskin mat! I ordered two. At first look I was worried think "are they real?" but once taken out of the air tight package and hung out in the sun for the afternoon, the odd dirty dog smell dissipated and the feeling that the fur had a film on it was also gone. The quality is incredible — it’s unbelievably soft, thick, and luxurious. I draped them over my 2 sofa's and it instantly transformed the whole room, making it feel warm, cozy, and elegant. The texture is so plush and comfortable that everyone who visits comments on how beautiful it looks and feels. The size is perfect, the colour is gorgeous, and it adds such a stylish touch to my living space. It feels durable and well-made while still being incredibly soft to sit on. Highly recommend for anyone wanting to add comfort and sophistication to their home!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 8, 2026
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      Verified Purchase
      That pretty Cali girl
      New York, US
      ★★★★★ 5
      Fabulous
      Size: 2' x 6' (Sheepskin Pelt Patchwork), Color: Ivory White
      This is a beautiful rug, thick and plush delivered in such a nice packaging to protect it. I just bought two more and I will be buying two more after this. They are so nice the best one and genuine.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 17, 2026

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