How to Choose Your Springsuit

Womens wetsuit

Wetsuits are an investment of money and your time to keep you warm and comfortable in the water. We are here to help you choose the best option for your location and sizing!

Choose Your Wetsuit Type

Full suit/steamer
Long john/Jane


Choose Which Season

Wetsuits come in several thicknesses measured in millimeters. The thickness of the wetsuit determines what temperatures it accommodates. In general, wetsuits come in five thicknesses:

0.5 – 1 mm
2 mm
3 mm
4 mm
5+ mm

Anything over 5mm tends to be a specialty product that you don’t need unless you’re swimming in the arctic. Each thickness matches a water temperature range;

> 22 degrees celsius – no wetsuit required

18-23 degrees celsius – 0.5mm to 2/1mm

16-20 degrees celsius – 2mm to 3/2mm
14-17 degrees celsius – 3/2mm to 4/3mm

11-14 degrees celsius – 4/3mm to 5/4/3mm

0-11 degrees celsius – 5/4mm to 5/4/3mm

< 5 degrees celsius – 6/5mm to 6/5/4mm

Remember that water temps aren’t everything. An icy wind, air temperature, your sensitivity, and your activity all make a difference.



Is there extra room in your knees, shoulders, or torso?

Is lifting your head over your arms and moving your shoulders difficult?

Is it difficult to crouch down and move your arms?

If so, this is not a good fit.

Please use our size charts (link) as a general guide to help you select your size for our ecoprene suits. If you have a specific sizing question or would like more information, please e-mail: 

What makes Nisi wetsuits different?

Nisi Wetsuits come in seperates for spring/summer climates. 

We have flattering cuts that suit any shape. 

We use Limestone and BIO-SS II Neoprene which is sustainable and keeps you warmer than regular neoprene rubber

We have a range of simplistic block colours that stand out

You can style your pieces any way that you like. Also helping you get the perfect fit for both tops and bottoms.

How should my wetsuit fit?

Your wetsuit should be a snug fit when new and will loosen off ever so slightly once wet. Your wetsuit should be like a second skin, keeping you warm and comfortable

If the arms and legs are a little long or short, that is ok. 

The torso and collar must be tight enough to hold out water, but not tight to the point it restricts your breathing.

The crotch and butt area should not be too loose where it folds or fills with too much water. 

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