Spark Down Sleeping Bag 45°F/7°C - Long
Spark Down Sleeping Bag 45°F/7°C - Long

Spark Down Sleeping Bag 45°F/7°C - Long

The Spark sleeping bag is the perfect option for lightweight adventures that puts comfort at the forefront....
Availability: In stock
$188.70
$628.99
$188.70
Subtotal: $188.70
Size guide
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Description
The Spark sleeping bag is the perfect option for lightweight adventures that puts comfort at the forefront. The optimal warmth to weight ratio and 850+ Fill Power makes this bag as comfortable as it is compact and easily packable.

Features
• Mummy fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight
• Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions
• Breathable 10D nylon s used to provide a high level of comfort with very low weight and packed volume
• The hood and footbox feature a coated water-resistant version of the 10D nylon to provide protection against tent wall condensation
• The Mummy Fit maximises thermal efficiency and offers greater heat retention with a lightweight design for warmth, compactness and comfort in the outdoors
• 100% RDS Down certified by control union 883003
• Zip: Spark 7°C/45°F Primary zip-1/2 length #5 with zip-plow and two sliders
• Baffle construction: Vertical chest baffles, horizontal baffles lower half and base. Spark 7°C/45°F-sewn through quilted construction throughout
• Collar: Spark 7°C/45°F Standard front draft collar
• Hood: Technical fitted hood with soft touch adjustment. Extra deep for cosy like feel
• Draft Tube: Spark 7°C/45°F No draft tube
• Bag integration: Spark 7°C & -1°C can't be paired
• Quilt integration: Pairs with STS quilts

Materials
• Insulation: 850+ Fill Power, RDS-certified, Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions
• Shell and Lining: 10D Nylon, Water-resistant, breathable hood and footbox

Specifications
• Compressed size: 3L
• Dimensions: 65x57.1x44.1in/165x145x112cm
• Comfort: 11°C/51°F
• Lower limit: 7°C/45°F
• Max user Height: 77.9in/198cm
• Weight: 387g/13.6oz
• Fill Weight: 172g/6.1oz
Spark Down Sleeping Bag 45°F/7°C - Long

Spark Down Sleeping Bag 45°F/7°C - Long

$628.99 $188.70
Spark Down Sleeping Bag 45°F/7°C - Long

Spark Down Sleeping Bag 45°F/7°C - Long

$628.99 $188.70
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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