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Assos NS.skinFoil_hotsummer Men's Base Layer

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Item # AAS0208

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Item # AAS0208


Called 'body insulators' by Assos, this new collection of base layers replace the previous Interactive series, and focuses all of the attention toward meticulously calibrated choices of custom-designed yarn matrixes. What resulted from this new approach is called the skinFoil series of Assos base layers. Essentially, Assos created seven models that cover the seven ranges of climates from spring (1) to winterPlus (7). Each model within this 'System ClimaRange' was designed to ideally complement your second layer of Assos jerseys or jackets, providing you with a perfect match for your riding conditions. Along these lines, the NS.skinFoil_hotsummer Base Layer is ideal for next-to-skin coverage within the 86 to 104 Fahrenheit range.

For the construction of the NS.skinFoil_hotsummer base layer, Assos used its proprietary skinFoil yarns. These blended polypropylene fibers are extraordinarily light and are able to transport and evaporate moisture much quicker than traditional polyester blends. Polypropylene was selected over the standard polyester for both its moisture management and durability. Polypropylene and polyester are both polymers, meaning that they're both essentially plastics. However, where they differ is that polypropylene is hydrophobic to that point that it's unable to absorb water. And, as a result, it spreads moisture out over a larger surface area, which rapidly accelerates evaporation. So, in short, these fibers ensure that your feet will remain dry. Additionally, these blended yarns form a highly elastic material that creates a push-pull effect in order to hold your muscles in place as you ride. The fabric is antistatic and antibacterial, and it is also dermatologically tested and approved. This means that you stay comfortable, fresh, and dry underneath all of your outer layers.

For this new collection of base layers, Assos decided to forego any pre-shaped paneling designs in favor of a seamless, tubular construction. The reasoning behind this is that you receive a pleasing, non-restrictive, and total comfort fit. The fabric matrix is also spun, much like a sock, versus the standard flatbed knit technology, which better wraps and supports your torso than pieced-together panel designs.

The Assos NS.skinFoil_hotsummer Base Layer is available in the color White and in the sizes 0 (XX-Small/x-small), I (Small/medium), II (Large/x-large), and III (XLG/tir, which translates to XX-large/xxx-large).

Tech Specs

71% polypropylene, 19% polyamide, 10% polyester
form fit
Recommended Use:
hot weather road racing
Manufacturer Warranty:
limited lifetime

Size chart


Men's Apparel
Leg & Knee Warmers 0 I II
Height 4ft 11in - 5ft 2in
(150 - 159cm)
5ft 3in - 5ft 6in
(160 - 169cm)
5ft 7in - 5ft 10in
(170 - 179cm)
5ft 11in - 6ft 1in
(180 - 185cm)
6ft 1in - 6ft 3in
(186 - 190cm)
6ft 3in - 6ft 5in+
(191 - 195cm+)
XLG but wider
Arm Warmers 0 I II
Chest 35.4in
46.5+ in
How to Measure:
For best results, take measurements over your underwear.
Measure around the widest part of your chest.

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Avg. ride time: 5h 25m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Perfect fit, super comfy

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: Small

Fits like a glove and doesn't chaffe at all. The back is sightly long, but not as long as the Craft versions which were too long for me.