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

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

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