Sidewinder SL 20F/-7C Sleeping Bag - Women's
Big Agnes
Size guide
How to choose the right size
User size: Measure your total height, barefoot, in an upright position.
Choosing the length: For optimal thermal efficiency, choose the most suitable length possible while maintaining a slight space at the feet.
🛌 Sleeping bags – Length
| Bag size | User height (cm) | Internal length of the bag (cm) |
|---|---|---|
| Shorts | up to 168 | 180 |
| Regular | up to 183 | 198 |
| Long | up to 198 | 213 |
👤 Big Agnes sleeping bag cuts
| Cut | Description | Benefits | Recommended use |
|---|---|---|---|
| Unisex/Men | Standard mummy cut, balanced width at the shoulders and hips | Good compromise between warmth, comfort, and weight. | Trekking, mountaineering, hiking |
| Women | Shorter cut, narrower shoulders, wider hips | Optimized insulation, better fit for women | Hiking, trekking, camping in cool weather |
| Wide | Mummy enlarged at the shoulders and hips | Increased comfort, freedom of movement | Wide sleepers, comfortable use |
| Rectangular | Straight cut with full zip | Maximum comfort, modularity | Camping, van life |
| Quilt/System | Without back insulation, compatible with Big Agnes mattress | Reduced weight, thermal efficiency | Ultralight, bikepacking |
📐 Internal widths (indicative depending on the range)
| Cut | Shoulders (cm) | Hips (cm) | Feet (cm) |
|---|---|---|---|
| Standard Mummy | 150 – 155 | 135 – 140 | 100 – 105 |
| Wide | 160 – 165 | 145 – 150 | 105 – 110 |
| Women | 145 – 150 | 140 – 145 | 100 – 105 |
Dimensions may vary slightly depending on the Big Agnes model (down or synthetic). The sizes indicated correspond to the brand's general recommendations for choosing the length and cut.
Sidewinder SL 20F/-7C Sleeping Bag - Women's - Small is out of stock and will ship as soon as it is back in stock.
Estimated delivery: Estimate based on Canada Post standards, business days only.
You choose pickup or shipping at checkout.
- Shipping costs : Shipping costs may vary depending on the weight, dimensions of the package, and the delivery address. These costs will be calculated and displayed at checkout.
- Free shipping : We offer free shipping on all orders of $150 or more, before taxes and after discounts.
- Oversized products : A delivery charge may apply even if the minimum order for free delivery is not met. This applies to oversized products (weight or volume).
Return policies
All sales are final. No exchanges or refunds will be accepted, even if the color, size, or product does not meet your expectations. We encourage you to carefully review your selection before completing your purchase.
If the product you purchased has a manufacturing defect or is faulty, we want to resolve it quickly. Please email us at info@marchealpin.caPlease include a description of the problem and photos of the product in question. Our team will be happy to assist you and find a suitable solution.
Thank you for your understanding of our policy, which allows us to maintain such competitive prices!
Sidewinder SL 20F/-7C Sleeping Bag - Women's
The Big Agnes Women's Sidewinder SL 20 Sleeping Bag is designed specifically for side sleepers seeking warmth and comfort in cool to cold conditions. Its ergonomic shape moves with your body when switching sides, while its hybrid insulation combines hydrophobic DownTek™ down and synthetic fibers to retain warmth even in damp conditions.
Benefits
• Shape designed for side sleepers with articulated zones
• Hybrid insulation combining the lightness and warmth of down with the moisture resistance of synthetic
• Women's specific cut for optimized thermal comfort
• Fitted hood and collar to limit heat loss
• Compressible and lightweight for easy transport
Zero stores, only deals
Alpine Market, it's a online store Specializing in outdoor gear. No physical store, which reduces our costs and allows us to offer the best prices. We buy new products from previous seasons and samples directly from the brands. Quantities are always very limited: when it's gone, it's gone.
