# Sipre Ackua 575 (Marlin)

> Surfski by Sipre. Canonical page: https://surfskiindex.com/surfskis/sipre-ackua-575/
> Cite as: Sipre Ackua 575 (Marlin), Surfski Index, https://surfskiindex.com/surfskis/sipre-ackua-575/ (checked 2026-10-15). Terms: https://surfskiindex.com/using-our-data/

## Specifications
- Length: 5.78 m
- Beam: 48 cm
- Deck height: 33.5 cm (estimated)
- Layup weights: Fiberglass (polyester) 16 kg, Carbon vacuum (epoxy) 12 kg
- Usually paddled by: Paddlers in chop

## Ratings (Surfski Index estimates)
- Stability band 6–8 out of 10 (dimension estimate, low confidence).
- Speed rated 7 out of 10.

Modelled from published beam, length and deck height. Low confidence. Speed is our rating. Both are given at the hull's own design weight.

These ratings are Surfski Index estimates, worked out from published dimensions, traced hull shapes where we have them, and reviews. They are not supplied by the maker or timed on the water. How a ski feels depends on your weight, skill, set-up and the conditions, so use them to shortlist skis and paddle one before you buy. Method: https://surfskiindex.com/how-it-works/#limits

Evidence note: This band is estimated from published dimensions. Qualitative context includes 2 paddler reports and 2 linked sources.

## Paddler weight
Estimated sweet spot 77–90 kg, broader estimated guide 63–93 kg. An estimate from hull dimensions, not the designer's intended weight.

## Suits
Fitness paddling and intermediate racing on flatwater to moderate ocean; a step toward downwind.

## Hull
Mid-length (5.78m), 48cm-wide intermediate hull sitting in the same width band as the Epic V10 Sport and Think Evo II. Balanced primary and secondary stability aimed at fitness paddlers stepping up from wide beginner skis.

## What works
- Versatile 48cm intermediate width
- Good stability-to-speed balance for fitness paddlers
- Full 5.78m length glides better than short beginner skis

## Trade-offs
- No official AU distribution, import/secondary
- Layup weights not fully published
- Very little English-language review coverage

## Generations
- ~2018-present: Intermediate ski listed on surfski.info as 'Sipre Marlin M' (48cm x 578cm); launched alongside the OC1 Ackua Veloce in Sipre's 2018 line.

## What paddlers say
- The surfski.info Width x Length chart lists it as 'Sipre Marlin M' at 48cm x 578cm, placing it in the intermediate fitness-ski band next to the Epic V10 Sport and Think Evo II (surfski.info).
- Sipre showcased the 'SS1 Ackua 575 and OC1 Ackua Veloce' together in its own launch video (SIPRE Kayaks, Facebook).

## Sources
- https://surfski.info/forum/19-boats/18846-surfski-width-x-length-chart-jan-2026.html
- https://www.facebook.com/SIPREKayaksPOR/videos/ss1-ackua-575-and-oc1-ackua-veloce/720082788356617/

## Prices
Current new prices and dealers: https://surfskiindex.com/surfskis/sipre-ackua-575/#buy