Sierra Designs Nitro 35 800 Dridown Sleeping Bag
The Sierra Designs Nitro 35 800 DriDown (Regular) is a classic mummy bag and one of Sierra Designs' best-selling sleeping bags, built for backpackers who want low weight, comfort and simple, dependable tech. This warmer-weather 35F model is insulated with 800-fill-power, hydrophobic PFC-free DriDown and wrapped in ultralight 15-denier nylon ripstop, tipping the scales at just 0.61kg.
A draft collar seals in heat, while 5-inch baffle spacing and sidewall baffles stop the down shifting and forming cold spots. The patented self-sealing foot vent gives warmer sleepers relief without kicking off the covers, and an anti-snag zipper makes getting in and out easy.
Key Features
- 800FP PFC-Free DriDown - Hydrophobic down that stays warm even when damp
- Ultralight Build - Just 0.61kg, one of the lightest in the range
- 15D Nylon Ripstop - Durable yet featherweight shell and liner
- Draft Collar - Seals in heat as you move
- Sidewall and 5in Baffles - Stop down shifting for even warmth
- Self-Sealing Foot Vent - Fast, easy ventilation for warmer sleepers
- Anti-Snag Zipper Tracks - Easy in and out
- Classic Mummy Shape - Efficient warmth for backpacking
Ideal For
- Summer Backpacking - Featherlight down for warmer trips
- Mild 3-Season Nights - EN comfort 3°C, limit -3°C
- Ultralight Trips - Packs tiny at just 0.61kg
- Damp Conditions - Hydrophobic DriDown
Technical Specifications
| Brand | Sierra Designs |
|---|---|
| Distributor | Twist Distribution |
| Product Type | Sleeping Bag |
| Size | Regular |
| Shape | Mummy |
| EN Comfort | 37°F / 3°C |
| EN Limit | 27°F / -3°C |
| Insulation | 800 Fill Power PFC-Free DriDown (hydrophobic) |
| Fill Weight | 9oz / 255g |
| Minimum Weight | 0.61kg (1 lb 6 oz) |
| Fits Up To | 183cm (6ft) |
| Length | 198cm (78in) |
| Shoulder Circumference | 157cm (62in) |
| Hip Circumference | 142cm (56in) |
| Footbox Circumference | 102cm (40in) |
| Packed Size | 33 x 18 cm (stuff sack) |
| Shell | 15D Nylon Ripstop |
| Liner | 15D Nylon Ripstop |
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