Mens Base Layers and Running Tops
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  • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue
  • Vayper Long Sleeve [Mens]
  • alpkit mens vayper long sleeve baselayer for trail running and fell running in black
  • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue outfit
  • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue front
  • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue rear
  • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue logo
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  • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue
  • Vayper Long Sleeve [Mens]
  • alpkit mens vayper long sleeve baselayer for trail running and fell running in black
  • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue outfit
  • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue front
  • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue rear
  • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue logo
Base Layers and Running Tops

Vayper Long Sleeve

High performance base layer made from 100% recycled fabric

$44.99 $59.99

The go-to foundation of any layering system: ultralight, silk-feel and Polygeine® treated long-sleeved base layer with a next-to-skin cut that rapidly wicks away moisture.
  • Size
  • Colour
    • alpkit mens vayper long sleeve baselayer for trail running and fell running in reef blue
    • alpkit mens vayper long sleeve baselayer for trail running and fell running in black

Pre-order now for despatch from . We'll keep you up-to-date with your order progress and despatch as soon as it is available.

  • 3-Year Guarantee

  • Free Delivery over $99

  • Free Returns

  • All Duties, Taxes & Tariffs Paid on UK origin products

From sun-baked ascents to multi-day missions, the Vayper Long Sleeve delivers cool, dry comfort with extra protection where you need it most.

  • 100% recycled polyester – soft, fast-drying, and ultralight

  • Long sleeves shield you from sun, wind, and pack abrasion

  • Polygiene® Stay Fresh tech – wear it longer, wash it less

  • Close fit wicks sweat fast and layers easily

  • Fine knit traps warmth under layers, breathes brilliantly on its own

Lightweight. Long sleeve. Built to move.

The Vayper Long Sleeve is your go-to for exposed trails, high-output efforts and anywhere you need performance without bulk. The fabric is smooth and featherlight — barely there against your skin, but built to work hard in the heat and under pressure.

Its athletic cut keeps it snug against the body to wick moisture efficiently, whether you’re powering uphill or covering long miles in the saddle. And while it excels in the heat, it’s just as effective as a base layer when the forecast turns.

Lower impact. Higher mileage.

Woven from 100% recycled fibres and treated with Polygiene® odour control, the Vayper Long Sleeve lets you do more with less — less packing, less washing, and less environmental impact. It’s the kind of top you’ll wear on repeat, from spring ridge days to summer thru-hikes and beyond.

Features

Key Features

  • Athletic next-to-skin cut and wicking material combine to rapidly draw sweat away from the skin
  • Close cut fit adds low bulk warmth when worn underneath layers by trapping pockets of still, warm air
  • Ultralight, silk-feel fabric retains less moisture, drying faster
  • 100% Recycled polyester and Polygiene treated fabric resists the growth of bacteria, keeping your tee smelling fresh for longer
  • Flatlock seams reduce rubbing and discomfort underneath rucksack straps
  • 3 Year Alpine Bond

Vital stats

Fit

Tight

Construction

100% Recycled Polyester, 95gsm
Polygeine® treated

Weight

M: 113 g

Origin: China

Men's Base Layer Sizing
UK XS S M L XL XXL
Chest
Inches
CMs

34"

88


37"
94

40"
102

43"
109

46"
117

49"
124
Waist
Inches
CMs

28"

71


30"
76

32"
81

34"
86

36"
91

38"
97
Sleeve
Inches
CMs

32"

81.5


33"
84

34"
86.5

35"
89

36"
91.5

36.5"
92.5
EU
USA

44

34

46
36
48
38
50
40
52
42
54
44

How to measure

This size chart indicates the body measurements our garments are designed to fit. Measure yourself as described below, and use the size chart to find your size:
Chest - measure around your chest at the widest part. The tape measure should pass under your arms, and be level from front to back.
Waist - measure around your waist at the narrowest part.
Sleeve - With your arms relaxed by your side, tilt your head down and ask a friend to measure from the bone at the base of your neck, over your shoulder and down your arm to the fold at your wrist.

Fit Guide

Tight

Close fitting designed to conform to your body.

Slim

Slim and slightly contoured but not form fitting.

Regular

A comfortable fit that's not too tight, nor too loose.

Relaxed

A looser fit with a bit more space but not too baggy.