SKU: 55715859908

2026 O'Brien Siege w/ Z9 Boot + RTP

Sale price$342.00 Regular price$380.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

2026 O'Brien Siege w/ Z9 Boot + RTPThe O'Brien Siege is the waterski built to perform on a budget. Built with a forgiving fibreglass and polyurethane construction, O'Brien makes the 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 Siege is designed to work with the core, creating a ski that will create edge turn and hold with ease while also

The O'Brien Siege is the waterski built to perform on a budget. Built with a forgiving fibreglass and polyurethane construction, O'Brien makes the 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 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 effortless 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

  • (66") - Up to 71Kgs
  • (67.5") - 68Kgs to 88Kgs
  • (69") - 84Kgs to 102Kgs

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: 55715859908

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      4.5 ★★★★★
      Based on 26 reviews
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      Verified Purchase
      Tim Arnette
      New York, US
      ★★★★★ 5
      Looks good feels good
      Size: 13 Wide, Color: Black
      I've had them 2 weeks and love them. Took a little breaking in but they feel great now.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 8, 2026
      E
      Verified Purchase
      Elizabeth Henderson
      Boise, US
      ★★★★★ 4
      Very narrow
      Size: 10 Wide, Color: Cognac
      Run narrow. For very narrow feet. Wide width fits like a regular width.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on February 9, 2026
      M
      Verified Purchase
      Mynx
      San Leandro, US
      ★★★★★ 5
      Comfortable Shoes Right Out of the Box
      Size: 9, Color: Black
      I bought these shoes for my husband. He has a very hard time finding quality, comfortable shoes. These shoes are just as comfortable as his New Balance. He uses them as a dress shoe and wears them at least once a week. There was no break in period necessary. They were comfortable right out of the box! The only thing we didn't like was the white sole color. Once I knew he was going to keep them, I used a black sharpie marker to color the soles black. Instant amazing, comfortable dress shoes. They were well worth the cost. If you or your SO needs a comfortable pair of shoes, we highly recommend them.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on September 2, 2025
      B
      Verified Purchase
      B.J. G
      New York, US
      ★★★★★ 3
      Decent Shoes with Misleading Description (Not Leather)
      Size: 12 Wide, Color: Black, Size: 12 Wide, Color: Black
      I only look for leather when I’m purchasing dress shoes. Under the description “details” on this item it lists the shoe as leather upper and inner lining. A photo shows “genuine Napa leather lining”. If you keep reading (which I have now that I’ve received the shoes) it shows “faux leather” in the small print and that is not “leather”. I run a small leather business and this irks me because it’s clearly false advertising. The details also show the product is made in Brazil but when they arrived today, the shoe tag shows “Made in China” and “Man Made upper and lower”. I don’t hate the shoes. They look nice. What I know is they won’t hold up over time like leather, which is why the description should be accurate and not misleading.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on March 28, 2026
      D
      Verified Purchase
      Dianne
      Cuba, US
      ★★★★★ 5
      Men’s oxfords
      Size: 10.5, Color: Black
      Good quality and perfect fit
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on March 22, 2026

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