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Out of stock - RAB Men's Nucleus Pull-On

Out of stock

A lightweight fleece pullover with high stretch and odour control, that makes a perfect active midlayer.

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Product code: 15897468 / 208982

A lightweight fleece pullover with high stretch and odour control, that makes a perfect active midlayer.

  • Double-knit fleece fabric
  • Polygiene 'STAY FRESH' odour control treatment
  • High collar
  • YKK deep -venting chest zip
  • Flatlock low bulk seams
  • YKK zip chest pocket
  • Weight: 305g approx
Medium Weight
This product qualifies for the following delivery methods:


Returning orders to us is easy. Whatever your reason, we offer a refund or exchange within 28 days of delivery or collection.

XS 35.5" 28" 33"
S 37" 30" 33"
M 40" 32" 34"
L 43" 34" 35"
XL 46" 36" 36"
XXL 48" 38" 36"
XS 90 cm 71 cm 83 cm
S 94 cm 76 cm 83 cm
M 102 cm 81 cm 86 cm
L 109 cm 86 cm 89 cm
XL 117 cm 91 cm 91 cm
XXL 122 cm 96 cm 91 cm
Short 30"
Regular 32"
Long 34"
Short 76 cm
Regular 81 cm
Long 86 cm

Men's Rab Clothing Size Guide

Measuring tips

Take your actual body measurements as they are more accurate than measuring over your clothes or shoes.

CHEST: Measure around the fullest part of your chest, making sure to keep the tape under the arms and around your shoulder blades.

WAIST: Measure around the smallest part of your waist (natural waistline).

HIPS: Stand with your heels together and measure around the fullest part.

INSIDE LEG: Measure from the top of your inner leg, along the inside seam to the bottom of your leg.

Ratings & Reviews

Overall Rating

4.87 out of 5
23 reviews
Write a review
4.87 out of 5

Rab nucleus pull on

Very warm and comfortable top. I'm usually a medium but decided on the large due to the fit. Usual high quality from Rab. Bought mine in the sale at Go Outdoors. Would recommend.

4.87 out of 5

Rab mens Nucleus Pull on

A very comfortable and warm top. Very handy front pocket too.

4.87 out of 5

Spot on

After researching various brands Rab seem to be on the ball with top end quality and fit for purpose products.
This certainly ticks all them boxes very impressed lightweight, comfy and I’m sure it will serve me well next week In the Lake District!!
Will be buying more Rab products!!

4.87 out of 5

all weather

Whatever the weather it works; cool evening, windy fell tops, under the waterproof. Great product

4.87 out of 5

Rab Tastic

Great kit, highly recommend that's why I now have 3 tops

4.87 out of 5

Fantastic top

Bought this top for a long distance walk I have planned but have been wearing it for a month before hand and love this top. I’m a very cold person and find this nice and warm with a snug fit which does right up in the neck. Not to bulky to wear under a coat and looks good as well.

4.87 out of 5

light in weight, but heavy in warmth

A 20 mile walk and sub zero temps really gave this top a test.

With only a base layer below and a windproof soft shell on top I was very warm, the zip is a good length to help regulate temps. I can see it being a perfect long sleeve top for all but the warmest of days.

The chest pocket is perfect for keeping my mobile in but it didn't cause any chest sag like others I've work and carried the phone there.

Overall, in my eyes its pricey but after using it the price is justified and I've just ordered another 2

4.87 out of 5

Rab Nucleus Pull-On

This is a quality product that fits well, looks stylish for casual indoor wear, is warm as a base layer for outdoor wear and is very comfortable. Everything considered, represents good value for money.

4.87 out of 5

Rab nucleus

Supremely comfortable, high quality, great sized chest pocket

4.87 out of 5

Rab Nucleus

I had to search to find one that fitted XL. Being a slim fit it does feels tight and I could not find the colour I wanted so had to settle for blue. Having said that the quality is excellent and having used it 3 times so far as a mid layer, I have kept extremely warm and comfortable in rain, sleat and snow.

4.87 out of 5


I bought this top and love it, heading back to the store to buy a second as I wear it so much!
Ideal for everyday use or as an under layer for walking.

4.87 out of 5

Rab Men's Nucleus

I've bought two of these Rab tops I love them so much.
I have one in the grey, and one in the green.
These aren't the cheapest tops around, but don't be put off, they really are well made and very comfortable, very warm too, with good quality zips, and a useful pocket.
They are slim fitting, I'm an XL, but they okay on me.
I highly recommend them.

4.87 out of 5

Great but not perfect

I've browsed the internet far and wide, searching for fleece midlayers and I must say Rab probably makes the most beautiful ones.

The design is great: I love the slight gloss of the fabric and the slightly gridded exterior. The gridded collar... not so much. The fit is athletic, and I think the measurements provided by the manufacturer are off. I'm wearing an L at 6ft / 160 lbs with a snug fit (which I like)

I'm a massive sweater, and I had great hopes concerning the polygiene treatment... yet I'm not sure if it really works for me... I think I can wear the fleece twice between washes... which is about the same as untreated fleece... No idea...

4.87 out of 5

Great bit of Kit

Great bit of Kit , i have been building up a collection of Rab gear and i am never disappointed , quality before price !

4.87 out of 5

Excellent, minor complaint on fit

As with other Rab gear I have, this is a very high quality fleece. That said, I felt that the fit under the armpit area is a bit too snug, notwithstanding this is the same size (M) as my Rab down jacket, which is roomy. Not a real problem if you are wearing just a t-shirt underneath. Overall still happy with it.

4.87 out of 5


This is an excellent jumper. Bought just as the weather started to turn a few weeks ago and has been worn on the ascent of two Munros and one Scout camp.

In all three occasions it kept me very warm, far warmer than my equivalent garment from another source.

4.87 out of 5

Rab Men's Nucleus Pull-On

This top is so warm ! i have only had the need to wear this as a top layer - but i can only imagine the warmth when using as a mid layer - the fit is fantastic and very comfortable, it is also very light - can not recommend this product enough - five stars

4.87 out of 5

Cracking fleece

Just came back from the lakes where the weather was extremely windy, this fleece kept me nice and warm without an outer layer on I would highly recommend

4.87 out of 5


Great .Went up Snowden in 50 mile an hour winds last week and was as warm as toast. Always trust RAB.

4.87 out of 5

One of my favourite tops!

Was very sceptical when I bought this fleece, thought I may just be paying for the name. Definitely does what it says on the label. Just recently wore it in the Lake District over a T-shirt and didn't need anything else. In addition I think it also looks smart enough to wear out with jeans.


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