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Sportful Hot Pack Ultralight Jacket - Men's
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Item # STF000I

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Item # STF000I


You won't even know you're carrying it

Mother Nature is very indecisive, and always seems moreso when you get on your bike for your weekend ride. Sportful set out to create a jacket that protects you when you need it and folds up into your pocket when you don't. The result: the Hot Pack Ultralight Jacket. 

Constructed from Superleggera, a 7 denier yarn fabric, the entire Hot Pack jacket weighs only 50grams. Yet, the weave is so tight that not only is it windproof, it is also highly water resistant. This quality is enhanced with a DWR (Durable Water Resistant) finish. It features laser-cut vents with reflective trim on the back and sides to help ventilate heat. 

The Hot Pack was cut to fit while in riding position and therefore the back and arms have been elongated. Elastic cuffs and hem, and a high collar help to seal out the elements. When the rain has stopped, it folds up into its own pouch and takes up less than half a jersey pocket.

The Sportful Hot Pack Ultralight Jacket - Men's is available in sizes X-Small to XXX-Large and in the color Light gray.

Tech Specs

Superleggera DWR
not taped
form fit
side vents
spring, summer, fall
1 back
Claimed Weight:
50 g
Recommended Use:
cool weather cycling

Size Chart


 Men's Apparel
 Small Medium Large X-Large  2X-Large3X-Large
Chest  35.5 - 37in
(90.2 - 94.0cm)
 37 - 38.5in
(94.0 - 97.8cm)
 39 - 41in
(99.1 - 104.1cm)
 41 - 43in
(104.1 - 109.2cm)
 43 - 45in
(109.2 - 114.3cm)
 45 - 47in
(114.3 - 119.4cm)
Waist  29.5 - 31.5in
(74.9 - 80.0cm)
 31 - 33in
(78.7 - 83.8cm)
 33 - 35.5in
(83.8 - 90.2cm)
 35.5 - 37.5in
(90.2 - 95.3cm)
 38.5 - 40.5in
(97.8 - 102.9cm)
 41 - 43in
(104.1 - 109.2cm)
 Hips  36.5 - 38.5in
(92.7 - 97.8cm)
 38 - 40in
(96.5 - 101.6cm)
 40 - 42in
(101.6 - 106.7cm)
 42 - 44in
(106.7 - 111.8cm)
 44 - 46in
(111.8 - 116.8cm)
 46 - 48in
(116.8 - 121.9cm)
Inseam  31.5in
How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
Natural Waist:
Measure around your natural waistline, keeping the tape a bit loose.
Measure around the fullest part of your body at the top of your legs.
Using pants that fit well, measure the crotch seam to the bottom of the leg.

Reviews & Community


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Great Jacket

  • Familiarity: I've used it several times
  • Fit: Runs large

This jacket packs down to nothing - lightest jacket I've found - it does run a little bigger than, say, my Castillo jacket. I'm 5'11" - 150 - and the medium is a little big on me. That said - I'm keeping it anyway

Perfect for what it is made for

  • Familiarity: I've put it through the wringer

A super light jacket like this is essential; in fact I use this jacket more than any other in my arsenal, as it can be used on a daily basis and packed away easily in a jersey pocket when not in use.

It is windproof and water resistant, but due to its thickness, it will feel wet against your skin, and will soak through if it is raining hard.

This is definitely a wind jacket, and rescue rain piece; definitely not your go-to rain cape. That said, this is exactly what it is supposed to be, and this is my favorite of all other like products that I have used.

Superlight, best for a dry climbing day

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: Medium

Good jacket for climbing where you just need some warmth on a descent. I used it multiple times in the Pyrenees this summer in this fashion and it performed perfectly.
DO NOT buy if you are looking for a rain cape. I wore recently on a 30 mile pissing rain day, not pouring, and it was useless. The fabric wetted out and I was soaked.

Questionable quality & longevity

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: Small

Yes, its very light and compact. It is also very useful when it is needed. However, only handful times of usage, the jacket is already falling apart. The thread that holds the elastic wrist band and the garment are coming off, the orange reflector strip on the back is already gone.

Avg. ride time: 0m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Fit Seems Right On!

  • Familiarity: I've used it once or twice and have initial impressions

I haven't ridden in it yet, but my initial impression is that this is fantastic. I returned the Mavic Cosmic Pro jacket for this and this fits enormously better and you can tell right away. <br /><br />First, it fits snug like a cycling jacket should. I run a medium in Capo Super Corsa cut jerseys and the medium in this is right on as a "second skin." The chest is a little snug when standing upright. The second you lean over and mimic a riding position the chest relaxes to the exact fit and the shoulders stay nice and snug - all elements are comfortable. The collar snugs up nicely when fully zipped, which the Mavic didn't (and it's the same price). <br /><br />It's light gray, and definitely translucent, which I prefer, so you can see your kit through it. <br /><br />Last thing - the sleeves are long enough to hit where they need to even when fully stretched; they're not too long though. Equally as important - the length of the body is right on. The front doesn't bunch when in a riding position. Moreover, the back length seems right on, especially when compared to the Mavic which was too long. In this case the jacket is a little longer than a jersey so it hits just a little lower and should easily accommodate for the contents of stuffed jersey pockets.<br /><br />Overall, I'm very impressed. I'll update after I've ridden in it, but it appears to be spot on!

Light and small

  • Familiarity: I've used it several times

This jacket is extremely thin, but warm. It packs smaller than any other jacket I've owed.

Incredibly light without compromise!

  • Familiarity: I've put it through the wringer

This jacket is amazing, folds down as small as a spare innertube (but probably lighter at just 50g) - when you first get it you think 'is this it?' It looks very tech/cool but it feels really fragile - amazingly it's not at all fragile, I've had this floating about in my pocket on pretty much every ride in the last year, its been in a puddle, stepped on, through the washing machine, attacked by a cat... a friend of mine had his one go into the cassette and came out in one piece after a bit of 'vanish' to remove the grease. It's totally windproof and the fit is really good so you don't get the 'jacket parachute' effect on descents. the lazer cut vents seem to do the trick and I find I'm not having to get the thing off the minute i get to the bottom of the hill! Sure it's a bit of cash but I doubt you can find a better windproof and certainly not one as light as this!

Packs down to nothing

  • Familiarity: I've used it once or twice and have initial impressions

Great to wear to the start of group rides to cut the chill. I wouldn't class it as super-breathable, but it's easy to shed and hide in a pocket once the body warms. I've been paring it with a slightly insulated (Fawesome) vest to cover a wide range of temperatures. Great for those cold but sunny mornings when you know it will heat up, either because of the weather or the pace of the ride. No more calculating what to wear. Just bring it, and stow it if it gets to be too much. Also bonus: you can see your team colors underneath and probably a bib number, as well. I plan to wear it for those wet and cold early spring races.