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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
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Description
Optimist BoomBoom MK4 45 mm A stiff allround 45 mm racing boom which is mainly suitable for sailors from 35 to 45 kg. High grade alloy, dark grey anodized Glass fibre filled nylon in and outboard end fittings Glass fibre filled nylon V shaped outhaul cleat Glass fibre filled nylon lacing eyes Fitted with outhaul trim strip 3. 5 mm Polyester outhaul line 3 mm Dyneema boom preventer line 3 mm Dyneema bridle with stainless steel ring 3 mm Dyneema primary vang line 5
Boom MK4 45 mm
A stiff allround 45 mm racing boom which is mainly suitable for sailors from 35 to 45 kg.
- High grade alloy, dark grey anodized
- Glass fibre filled nylon in- and outboard end fittings
- Glass fibre filled nylon V-shaped outhaul cleat
- Glass fibre filled nylon lacing eyes
- Fitted with outhaul trim strip
- 3.5 mm Polyester outhaul line
- 3 mm Dyneema boom preventer line
- 3 mm Dyneema bridle with stainless steel ring
- 3 mm Dyneema primary vang line
- 5 mm Dyneema / Technora secondary vang line
Boom MK5 48 mm
A lightweight yet ultra stiff and powerful 48 mm racing boom which is mainly suitable for the more experienced, heavier weight sailors above 45 kg.
This boom comes with an improved bridle system, an adjusted outhaul cleat position and a colored PRO outhaul trimstrip.
- High grade alloy, dark grey anodized
- Glass fibre filled nylon in- and outboard end fittings
- Glass fibre filled nylon V-shaped outhaul cleat
- Glass fibre filled nylon lacing eyes
- Fitted with the colored PRO outhaul trim strip
- 3.5 mm Polyester outhaul line
- 3 mm Dyneema boom preventer line
- 3 mm Dyneema bridle with two stainless steel rings
- 3 mm Dyneema primary vang line
- 5 mm Dyneema / Technora secondary vang line
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
4.8 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
My favorite low socks ever
Fit Type: Classic Fit, Color: Gray Assorted, Size: Large
Under armour adult essential Lite no-show socks are 96% polyester and 4% spandex footwear of imported origin. The polyester content of the socks enables them to hold their shape in a better manner along with having a non-absorbent nature. Additionally, it enables the socks to retain the colour in a better manner. Spandex improves their fit along with helping them last for longer time.
The flat fit construction of UA Men's Essential Lite is so designed to conform to foot for superior touch and feel. The material wicks engineered within the fabric dry sweat quickly and keep the feet fresh. The embedded arch support further keeps you going by reducing foot fatigue. The set comes with 6 pairs of socks with pull on closure for the perfect fit.
Ultrathin lightweight construction of the socks adds to user comfort by allowing users to conduct physical activity and work out while wearing it. Elastic strength of the socks prevents them from slipping down irrespective of the shoes they are worn with.
The socks come in 8-12 men shoe size and 9-12 women shoe size. They can be machine washed and are extremely durable while being cost effective.
I ordered the socks based on their colour and design symmetry. So far my socks have been through multiple washes and still look new and user ready. I wear them daily because of their amazing fit and plan to buy more as Christmas gifts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2022
★★★★★ 5
Love these socks!
Fit Type: Classic Fit, Color: Black, Size: Large
They are a little on the thin side, but that is how I like them. Thin, comfortable, breathable, but still sturdy. They work great for me and I have bought them several times for me and my kids over the years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2024
★★★★★ 4
Thin
Fit Type: Classic Fit, Color: Gray Assorted, Size: Medium
I bought these thinking they would be slightly thicker material. They are thin but don't make my feet sweat working outside in the heat while wearing them during my work shift. They are comfortable and stay in place so I don't have to keep fishing for them inside my shoe to move them up a bit.
The one thing I wish they had was the support band in the middle of the foot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2023
★★★★★ 5
Super comfortable
Fit Type: Classic Fit, Color: Black, Size: Large
Love these socks. They are very soft fabric but also heavy so they are very durable. And the price is far cheaper than any of my local stores.
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Reviewed in the United States on March 26, 2025
★★★★★ 5
Great product
Fit Type: Classic Fit, Color: Black, Size: Large
These are my favorite socks I’ve ever purchased for no-show socks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 9, 2025
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