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Assos SS.skinFoil_spring Men's Base Layer

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Item # AAS0213

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Item # AAS0213


Assos created an entirely new platform for its latest generation of base layers. Called 'body insulators' by Assos, this collection replaces 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 body insulators. Essentially, Assos created seven models of base layers 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 jersey or jacket, providing you with a perfect match for your riding conditions. The SS.skinFoil_spring base layer is the lightest of the group, ideal for next-to-skin coverage within the 68 to 77 Fahrenheit range.

For the construction of the SS.skinFoil_spring base layer, Assos used its proprietary skinFoil yarns. These blended polypropylene fibers are extraordinarily light and are able to absorb, transport, and evaporate moisture much quicker than traditional poly blends. 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 also antistatic and antibacterial, and it is also dermatologically tested and approved. This means 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, 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 SS.skinFoil_spring Base Layer is available in sizes XX-Small/x-small, Small/medium, Large/x-large, and XLG/tir (which translates to XX-large/xxx-large) and in the color White. 

Tech Specs

85% polypropylene, 15% polyester PBT
form fit
Recommended Use:
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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