Series

STS_ABT4_Basecamp4_top_web
STS_ABC_Basecamp_pillow attachment_web
An elasticated strap on the base of the hood secures your Sea to Summit Large Aeros Ultralight or Premium pillow in place to stop it slipping away in the night.
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Large Aeros Ultralight pillow secured to Ultra-Dry Down Basecamp Bc4.
STS_ABC_Basecamp_Options layer3_web
Unzip both the left and right side zips to use the sleeping bag as a quilt. Enjoy sticking your feet out the end of the bed, unzip the separate foot zip at the base of the bag.
STS_ABC_Basecamp_sitting up_web
Using mat loops 1 and 2 secures the Basecamp bag to your mat but allows you to sit up with your hood.
Make any campsite your Basecamp

“Sometimes you aren’t quite so concerned about shaving ounces from your gear
as you are about being comfortable and getting a great nights sleep… “
Tim Macartney-Snape

The Basecamp has been designed for those customers who find a mummy bag restrictive, and who would prefer to enjoy a little more comfort and stretch out space whilst escaping outdoors.

The Basecamp offers a contoured rectangular design to accommodate sleepers who like to stretch out full length, or those who like to curl up into a ball. It is also a fantastic solution for the restless sleeper who can now toss and turn in comfort, without being woken up because of a restrictive bag design.

The Basecamp is available in either three 750+ loft  ULTRA-DRY Down™ models to keep packed size low (BcI, BcII and BcIII), or two THERMOLITE® models where size isn’t a concern but a more affordable sleeping bag is desirable (Bt3 and Bt4).

If you are looking for the ultimate in camping comfort, the Basecamp has also been designed to work with our Air Sprung Cell sleeping mats and Aeros Pillows to create a truly comprehensive sleep system. Slide your mat into the small pocket at the foot of the bag and then use the strap and loop set-up to secure the upper section. Then inflate your Aeros Pillow to the perfect pressure, before securing it into place with the elasticised strap underneath the hood.

Versatility

No matter which way the weather turns, the Basecamp bag can be both modified to suit. Zip yourself in and pull the internal draw-cords tight to combat the cold. If the weather takes a turn towards summer, then you can vent the feet, or unzip one or both sides to keep yourself cool and comfortable.

The Basecamp is also so much more than just a sleeping bag, the dual zipper design means that it can transform from a substantial and sumptuous sleeping bag into a svelte summer quilt. The bottom of the quilt holds its shape as a roomy foot-box, and a series of attachment loops even lets you secure your quilt onto your mat to ensure maximum warmth.

See the seven photos on the right which illustrates the different uses of the versatile Basecamp sleeping bag.

Bt3
BT3 EN scales

Features: Spacious rectangular shape; pillow attachment system under hood to hold Aeros large pillow in place (not included); two position sleeping mat attachment system; differential cut shell; zip draft tube with anti-snag; cushioned internal hood draw-cord; 2 way YKK #5 zip on each side of the bag, plus separate foot zip; includes Sea to Summit 70D compression bag.

Insulation: THERMOLITE®

Bag weight: Regular 1654g | 3lb 10oz Large 1894g | 4lb 2oz

Quilt only weight: Regular 1122g | 2lb 8oz Large 1316g | 2lb 14oz

Length options: Regular – full length dual zips Large – full length dual zips

Season ratings: 3 Season - Summer/Spring/Autumn

Suggested use: Trekking/ Hiking, Camping, Snow camping, Ski touring

Compressed volume*: 11.6 litres

Compression bag: Regular: Medium – 15 to 5 litres Large : Large – 20 to 6.5 litres

Bt4
BT4 EN scales

Features: Spacious rectangular shape; pillow attachment system under hood to hold Aeros large pillow in place (not included); two position sleeping mat attachment system; differential cut shell; zip draft tube with anti-snag; cushioned internal hood draw-cord; 2 way YKK #5 zip on each side of the bag, plus separate foot zip; includes Sea to Summit 70D compression bag.

Insulation: THERMOLITE®

Bag weight: Regular 2279g | 5lb Large 2639g | 5lb 13oz

Quilt only weight: Regular 1444g | 3lb 3oz Large TBC

Length options: Regular – full length dual zips Large – full length dual zips

Season ratings: 4 Season - Spring/Autumn/Winter

Suggested use: Trekking/ Hiking, Snow camping, Ski touring, Base camp

Compressed volume*: 14.6 litres

Compression bag: Regular: Large – 20 to 6.5 litres Long: XLarge – 30 to 10 litres