Boost 650 Sleeping Bag 32°F/0°C - Regular
Boost 650 Sleeping Bag 32°F/0°C - Regular

Boost 650 Sleeping Bag 32°F/0°C - Regular

Ultra-comfy three-season backpacking sleeping bag with adjustable shape and warmth.From backpacking trips to car camping excursions, the...
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$119.99
$399.95
$119.99
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Size guide
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Description
Ultra-comfy three-season backpacking sleeping bag with adjustable shape and warmth.

From backpacking trips to car camping excursions, the Boost 650 provides the dreamy comfort you need to sleep well outdoors. With an innovative design that allows you to adjust its shape and add warmth when needed, the Boost is one of the most comfortable and versatile sleeping bags ever made. The semi-rectangular shape gives you considerably more internal space than a mummy bag. Zipping up the WarmZip center zipper transforms the shape of the Boost 650 from a semi-rectangular bag to a thermally efficient mummy bag. It pulls the 650-fill down around your body and reduces the amount of space your body needs to heat adding up to 10°F/6°C. Standard Therm-a-Rest features like a puffy draft collar, a draft tube along the entry zipper line and a cinchable hood round out the Boost’s bliss-inducing comfort.

Features
• Customizable comfort
• WarmZip™ technology
• Multi-Use Arm Holes
• 650-fill RDS-certified hydrophobic down with Zoned Insulation
• Shell and liner are made of GRS-certified 100% recycled, soft-to-the-touch nylon and coated with PFAS-free water repellent
• Inclusive sizing
• Ykk anti-snag zippers, cinchable hood, zipper draft tube, puffed draft collar, and a two-way entry zipper
• 650-fill hydrophobic down is certified to be sourced from humanely treated waterfowl by the Responsible Down Standard(RDS)

Materials
• Fill: 650 Fill Duck PFAS Free Hydrophobic Down, RDS
• Shell/Lining: 20D 100% Recycled Nylon Ripstop

Specifications
• Length: 80in/203cm
• Fits: 72in/183cm
• Girth Shoulder: 64in/163cm
• Girth Hip: 60in/152cm
• Girth Foot box: 61in/155cm
• Packed dimension: 10x6.5in/25x17cm
• EN Comfort: 5°C/41°F
• EN Limit: 0°C/32°F
• EN Extreme: -15°C/5°F
• Zipper side: Left
• Fill weight: 0.40kg/14oz
• Weight: 0.95kg/2lb 2oz

Includes
• Compression Sack
• Storage Sack
Boost 650 Sleeping Bag 32°F/0°C - Regular

Boost 650 Sleeping Bag 32°F/0°C - Regular

$399.95 $119.99
Boost 650 Sleeping Bag 32°F/0°C - Regular

Boost 650 Sleeping Bag 32°F/0°C - Regular

$399.95 $119.99
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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