Sea to Summit Trek Women's Down Sleeping Bag
Sea to Summit

Sea to Summit Trek Women's Down Sleeping Bag

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Trek Women's Down Sleeping Bag
Trek Women's Down Sleeping Bag
650+ Duck Down · Women's Specific Fit · 2 Temp Ratings · 2 Sizes · Free-Flow Zip

The Women's Trek is a roomy, semi-rectangular down sleeping bag built around a women's-specific shape — narrower at the shoulders, wider through the hips for natural side sleeping, and insulated where women need it most. Available in two temperature ratings and two lengths, it pairs the versatile Free-Flow Zip system with duck down for travel, car camping, and comfort-first backpacking trips.

Women's-Specific Shape
Narrower shoulders cut weight and bulk; wider hip-to-knee area allows a natural side-sleeping position without compressing insulation.
Insulation Mapped for Women
Down fill is distributed to add warmth in areas where women typically sleep colder, improving real-world thermal efficiency.
Semi-Rectangular Comfort Fit
Broader cut than the technical Ascent gives room to shift, store a pillow or clothes inside, and sit up partially without feeling constricted.
Free-Flow Zip System
Open progressively for ventilation — arm hole, full side zip, flat quilt. Snap the shoulders and open the footbox to wear the bag around camp on warm evenings.
Versatile Temp Range
Two ratings — 30°F and 15°F — cover shoulder-season backpacking, summer alpine nights, car camping, and winter travel.
Duck Down with Damp Resistance
RDS-certified 650+ fillpower duck down with a non-PFAS Ultra-Dry Down treatment holds loft in damp mornings and condensation-prone shelters.
Recycled Polyester Shell
20D recycled polyester shell with non-PFAS DWR blocks wind and light moisture, and the soft polyester liner sits comfortably against skin.
Pairs with Unisex Trek
Zips to a Unisex Trek for shared warmth across a couple's quilt-and-bag setup.
Temperature Variants
30°F / -1°C
Regular · Long
15°F / -9°C
Regular · Long
Weight (Total)
30°F Regular
1,239 g / 43.7 oz
30°F Long
1,418 g / 50.0 oz
15°F Regular
1,612 g / 56.9 oz
15°F Long
1,800 g / 63.5 oz
Fill Weight
30°F Regular
556 g / 19.61 oz
30°F Long
655 g / 23.1 oz
15°F Regular
800 g / 28.22 oz
15°F Long
925 g / 32.63 oz
Compressed Volume
30°F Regular
9.3 L
30°F Long
11.3 L
15°F Regular
12.8 L
15°F Long
14.3 L
Temperature Rating (Women's ISO Comfort)
30°F Variants
-1°C / 30°F
15°F Variants
-9°C / 16°F
Recommended User Height
Regular
up to 170 cm / 66.93 in
Long
up to 183 cm / 72.05 in
Materials
Shell
100% Recycled 20D Polyester (non-PFAS DWR)
Lining
100% Polyester
Insulation
RDS-certified 650+ Fillpower Duck Down, 80/20, non-PFAS Ultra-Dry Down treated
Stuff Sack
100% Nylon (excluding trims)
Side Zipper
YKK #3, full length, two sliders
Foot Zipper
YKK #5
What's Included
In Box
Compression stuff sack, storage cube

Store uncompressed in a dry, breathable bag between trips to preserve down loft.

Spot-clean the shell with mild down-safe soap; air dry thoroughly before packing.

For full washes, use a front-loading washer on gentle cycle with a down-specific detergent; tumble dry on low heat with clean tennis balls to break up down clumps.

Avoid prolonged direct sunlight and high heat to protect the DWR treatment.

Shipping Policy

Components:

All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 2-5 business days of purchase.

Bicycles:

Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.

Riding Gear & Apparel:

Riding gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 2-5 business days.

Returns & Exchanges:

If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.

For full details, please see our Refund Policy before initiating a return.

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Prepared with intention.

Every product is carefully inspected and handled by our team before it ships. From fit and function to final details, we make sure each piece is ready for the outdoors ahead—so you can focus on the experience, not the gear.

Passion drives us

At SpokeX Bike Co., bikes aren't just our business — they’re our way of life. As a rider-owned and operated shop, every decision we make comes from firsthand experience on the trail, at the race, and on the open road. We know what it’s like to chase a new line, push through the pain cave, and celebrate the ride — because we live it every day.

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