Delamar 25 vs Onyx 30: Choosing a Sleeping Bag Series
By Dakine | Backpacks, Luggage, Surf, Snow, & Bike Gear Since ... | Published: 2026-11-03
Category: Kaufberatung
Compare the Delamar 25 and Onyx 30 sleeping bags to decide which fill, weight, and size suits your camping trips, plus key factors for choosing any bag.
Quick answer
Choose the Delamar 25 if you want a budget-friendly synthetic bag with a foot relief zipper and don't mind a bit more weight. Choose the Onyx 30 if you prioritize packability and warmth from a down fill and are willing to spend more.
Fill type: synthetic vs down
The Delamar 25 uses Micro ThermoPro Fiber Filing, a synthetic insulation that continues to insulate if it gets damp. The Onyx 30 uses 80/20 duck down (650 fill power, 500g), which provides more warmth per ounce and compresses smaller. Down loses loft when wet, so it requires more careful moisture management. Neither bag lists a temperature rating, so use the series numbers (25 and 30) as relative indicators, not absolute ratings.
Weight and packed size
At 3.5 lbs (1.58 kg), the Delamar 25 is heavier and bulkier than the Onyx 30 at 2.4 lbs (1.08 kg). The Onyx 30's down fill and lighter shell fabrics (300T 50D polyester) make it easier to compress into a backpack. If you're counting ounces for backpacking, the Onyx 30 has a clear advantage. For car camping or short trips where weight matters less, the Delamar 25 is perfectly serviceable.
Size and fit
The Delamar 25 measures 82 x 33 inches (208 x 84 cm), while the Onyx 30 measures 74 x 34 inches (188 x 86 cm). The Delamar is longer, which suits taller sleepers, while the Onyx is wider but shorter. Check these dimensions against your height and sleeping style. Neither bag lists a user height limit, so use the length as a guide: the Delamar accommodates taller users, and the Onyx may be too short for anyone over about 6 feet.
Features and value
The Delamar 25 includes a foot relief zipper pouch, which lets you vent your feet without opening the whole bag—a nice touch for temperature regulation. The Onyx 30 emphasizes packability and warmth but lacks that feature. At $89.70 (compared to $130.00), the Delamar is the more budget-conscious choice. The Onyx 30 at $120.60 (compared to $180.00) costs more but offers lighter weight and down insulation. Consider how often you'll use the bag and in what conditions.
Decision rules: which sleeping bag to choose
- Choose the Delamar 25 if you want a budget-friendly synthetic bag: Pick the Delamar 25 when you need a dependable bag for car camping, scout trips, or damp climates and want to save money. The synthetic fill resists moisture, and the foot zipper adds versatility.
- Choose the Onyx 30 if you prioritize packability and warmth: Pick the Onyx 30 when you're backpacking or hiking overnight and need to save weight and space. The down fill compresses smaller and provides more warmth per ounce, but keep it dry.
- Check the length against your height: The Delamar 25 is 82 inches long (208 cm), while the Onyx 30 is 74 inches (188 cm). If you're taller than about 6 feet, the Delamar is the safer bet. If you're shorter, the Onyx's extra width may be more comfortable. Measure your height and compare to bag length before buying.
- Consider the temperature rating gap: The series numbers (25 and 30) suggest the Delamar is designed for slightly colder conditions, but neither bag lists an official temperature rating. Use these as relative guides and pair with a sleeping pad for insulation from the ground.
Product facts
- Delamar 25 Series Sleeping Bag - Castlerock: Micro ThermoPro Fiber Filing synthetic insulation with a foot relief zipper pouch. Synthetic fill handles damp conditions better, and the foot zipper lets you vent heat without unzipping the whole bag.
Delamar 25 Series Sleeping Bag - Castlerock - Onyx 30 Series Sleeping Bag - Castlerock: 80/20 duck down (650 fill power, 500g) filling and 2.4 lbs (1.08 kg) total weight. Down provides more warmth for its weight and packs smaller, making this bag easier to carry on backpacking trips.
Onyx 30 Series Sleeping Bag - Castlerock
Who each bag fits
Best for
- Budget-conscious campers who want a synthetic bag for car camping or damp conditions
- Taller sleepers who need a longer bag (up to 82 inches)
- Backpackers and hikers who prioritize lightweight packability and don't mind paying more for down
Not for
- Ultralight backpackers who need the absolute lightest option (consider a quilt or higher-end down bag)
- Sleepers taller than about 6 feet if choosing the Onyx 30 (too short)
- Those who frequently camp in wet conditions and prefer down (synthetic is safer)
