Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino

Airtube Ergo - Merino

Our ergonomic Airtube takes our traditional silhouette and contours it to the face to provide the best...
Availability: In stock
$17.99
$59.95
$17.99
Color: Army
Size: S | M
Subtotal: $17.99
Size guide
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Description

Our ergonomic Airtube takes our traditional silhouette and contours it to the face to provide the best possible comfort. This shape matches perfectly with your goggles to seal out the elements to keep you protected. Merino wool is a highly technical, natural fibre that has superior heat management, moisture wicking and odor preventing properties compared to man made fibres. Merino is incredibly lightweight which allows us to make our masks smaller and more compact without sacrificing performance in all conditions. This season we’ve added 5% Spandex to increase durability, comfort, and help maintain the shape. Protect yourself naturally with our renewable and biodegradable fabric. Our Airtube Ergo Merino masks feature our unique embroidered Airhole which is soft and comfortable against your face. The Airhole allows breath to escape freely, avoiding the buildup of condensation to keep you warm, dry and your goggles fog free. A dry mask ensures all day comfort and no bad odours.

Features :
• Embroidered Airhole Mouthpiece
• UPF 50 for 98% Sun Protection
• Ergonomic Shape Contours to the Face
• Super Soft, Luxurious Fabric Blend
• 95% Merino Wool & 5% Spandex Fabric
• Highly Technical Natural Fibre Insulator & Weather Resistor
• Natural, Renewable, Biodegradable & Breathable
• Multi-Functional Design - Wearable in Multiple Ways.
Airtube Ergo - Merino

Airtube Ergo - Merino

$59.95 $17.99
Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino
Airtube Ergo - Merino

Airtube Ergo - Merino

$59.95 $17.99
Color: Army
Size: S | M
Size chart
Altitude Sports Outlet — Size Guide

Size Guide

All measurements in inches (in) and pounds (lb). Built for the trail, fitted for you.

Men's Tops & Jackets

Chest: measure around the fullest part. Sleeve: from center back neck to wrist.

Size Chest (in) Waist (in) Sleeve (in)
S 36–38 29–31 32–33
M 39–41 32–34 33–34
L 42–44 35–37 34–35
XL 45–48 38–41 35–36
XXL 49–52 42–45 36–37
Women's Tops & Jackets

Bust: measure around the fullest part. Sleeve: from shoulder seam to wrist.

Size Bust (in) Waist (in) Sleeve (in)
XS 31–32 24–25 30–31
S 33–35 26–27 31–32
M 36–37 28–30 32–33
L 38–40 31–33 33–34
XL 41–43 34–36 34–35
Men's Bottoms (Hiking Pants / Shorts)

Waist: measure around natural waistline. Inseam: from crotch to ankle.

Size Waist (in) Hip (in) Inseam (in)
28 28–29 35–36 30–32
30 30–31 37–38 30–32
32 32–33 39–40 31–33
34 34–35 41–42 31–33
36 36–37 43–44 32–34
38 38–39 45–46 32–34
Women's Bottoms (Hiking Pants / Leggings)

Waist: measure around natural waist. Inseam: from crotch to desired length.

Size Waist (in) Hip (in) Inseam (in)
XS (0–2) 24–25 34–35 29–30
S (4–6) 26–27 36–37 29–30
M (8–10) 28–30 38–40 30–31
L (12–14) 31–33 41–43 30–31
XL (16) 34–36 44–46 31–32
Men's & Women's Shoes (Running / Hiking / Trail)

Foot length: measure heel to longest toe. For hiking boots, size up ½ size.

US Men US Women Foot Length (in) EU
7 8.5 9.6–9.8 40
8 9.5 10.0–10.2 41
9 10.5 10.4–10.6 42
10 11.5 10.8–11.0 43
11 12.5 11.2–11.4 44
12 13.5 11.6–11.8 45
13 — 12.0–12.2 46
Kids' Shoes (Running / Hiking)

Foot length: measure heel to longest toe. Kids grow fast—size up for growing room.

US Kids Foot Length (in) EU
10 6.5–6.7 27
11 6.8–7.0 28
12 7.1–7.3 29
13 7.4–7.6 31
1 7.7–7.9 32
2 8.0–8.2 33
3 8.3–8.5 34
4 8.6–8.8 35
5 8.9–9.1 36
6 9.2–9.4 37
Backpacks (Daypack / Hiking / Camping)

Torso length: measure from C7 vertebra (base of neck) to top of hip bones.

Size Torso Length (in) Capacity (L) Best For
XS / S 15–17 20–35 Day hikes / kids
M 17–19 35–55 Weekend trips
L / XL 19–21 55–75 Multi-day / thru-hikes
Sleeping Bags

User height: measured flat on back. Temperature ratings are guidelines—layer up in cold.

Size User Height (in) Shoulder Girth (in) Temp Rating (°F)
Regular up to 72 60–62 20°F / -6°C
Long up to 78 62–64 20°F / -6°C
Double up to 72 (each) — 30°F / -1°C
Tents (Camping / Backpacking)

Capacity is based on average adult sleepers. Size up for extra gear or pets.

Capacity Floor Area (sq ft) Peak Height (in) Best For
1-Person 15–20 36–40 Solo backpacking
2-Person 25–32 40–44 Couples / duo trips
3-Person 35–45 44–48 Small family
4-Person 50–65 48–56 Family / basecamp
6-Person 75–95 56–68 Group / car camping
Cycling Helmets

Head circumference: measure around forehead, just above eyebrows.

Size Head Circumference (in) Head Circumference (cm)
XS/S 20.0–21.5 51–55
M 21.5–23.0 55–59
L/XL 23.0–24.5 59–63
How to measure. Use a soft tape measure over light clothing. For the most accurate fit, measure twice and compare to the table above.
Between sizes? For tops and jackets, size up if you plan to layer. For hiking boots and trail shoes, size up ½ size to accommodate thicker socks.
Still unsure? Our gear is backed by a 60-day free return policy—find your fit risk-free. Contact support@altitude-sportshub.it.com and we'll help you nail it.

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