Therm-a-Rest Boost 650 32F/0C Regular Wide

Therm-a-Rest Boost 650 32F/0C Regular Wide Features:

• Customizable Comfort: Enjoy the spacious freedom of the semi-rectangular bag or the cozy warmth of a mummy bag—pick the shape and temperature that keeps you comfy at night with just a zip.
• WarmZip™ Tech: Patent-pending center zipper design zips up to reduce the bag’s internal space and tuck insulation around the sleeper to boost warmth by up to 10F/6C.
• Multi-Use Arm Holes: Reach the WarmZip, read a book, play cards or simply ventilate—do it all while tucked into your sleeping bag for elevated livability.
• Plush & Puffy: 650-fill RDS-certified hydrophobic down is allocated to key areas with Zoned Insulation for refined heat efficiency and maximum coziness.
• Eco-Conscious Materials: Shell and liner are made of GRS-certified 100% recycled, soft-to-the-touch nylon and coated with PFAS-free water repellent.
• Inclusive Sizing: Each size—Small, Regular, Long—is also available in a Wide size, so you get the bag you want in the fit you need.
• Additional Features: YKK anti-snag zippers, cinchable hood, zipper draft tube, puffed draft collar, and a two-way entry zipper.
• Included: Compression Sack, Storage Sack
• Weight 2 lb 8 oz (1121 g)
• Packed Dimentions 11 x 6.5 in (28 x 17 cm)
• Length 80 in (203 cm)
• Comfort Temp 5C
• Limit Temp 0C
• Extreme Temp -15C

From backpacking trips to car camping excursions, the Boost 650 provides the dreamy comfort you need to sleep well outdoors. With an innovative design that allows you to adjust its shape and add warmth when needed, the Boost is one of the most comfortable and versatile sleeping bags ever made. The semi-rectangular shape gives you considerably more internal space than a mummy bag—you’ll feel unrestricted and free to sleep in whatever position you want all night long. But more space demands more body heat to warm it up and cold isn’t comfortable. That’s where WarmZip comes in. Zipping up the WarmZip center zipper transforms the shape of the Boost 650 from a semi-rectangular bag to a thermally efficient mummy bag. It pulls the 650-fill down around your body and reduces the amount of space your body needs to heat. WarmZip gives you the power to add up to 10F/6C to the Boost’s temperature rating. Standard Therm-a-Rest features like a puffy draft collar, a draft tube along the entry zipper line and a cinchable hood round out the Boost’s bliss-inducing comfort.

We designed the Boost 650 to be comfortable when you’re falling asleep, when you’re asleep and when you’re wide awake and hanging out in your tent. The arm holes give you easy access to the WarmZip without having to use the side zipper. They also allow you to access your belongings, read a book, play cards or high-five your friends without leaving the cozy warmth of your sleeping bag. Getting too warm? Use the arm holes to ventilate or comfortably sleep with just your arms out. You can also ventilate around your torso or down by your feet with the two-way side zipper. Every zipper line on the Boost has a durable YKK anti-snag pull to eliminate annoying snags and damaging tears.

All that comfort must be bulky and heavy, right? Think again. The Boost 650 was built to backpack—we dialed in the materials and design to make it light, packable and high-performing in variable backcountry conditions. Zoned Insulation places the 650-fill hydrophobic down in key warmth-retention areas (on top, around your core and shoulders) and reduces it where it’s less efficient (on the bottom), allowing the Boost to create more warmth with less down. The shell and liner are made of 100%-recycled nylon that was handpicked for its light weight and super-soft feel. The PFAS-free DWR coating and the hydrophobic down keep the Boost warm and comfy even in wet weather.

Prices and Delivery Destinations

Prices displayed on our product pages are our UK headline prices and include UK VAT where applicable. Our selling prices may vary according to the delivery destination. This may be due to differences in VAT treatment, delivery costs and other commercial considerations. For orders to destinations outside the UK, including the Channel Islands, the applicable selling price will be calculated and displayed once the delivery destination has been entered and before the customer proceeds with payment. The price displayed at checkout is the price applicable to that destination, together with any separately stated delivery charges.  

European Delivery:

*additional charges may be applied by local customs for import tax on orders outside the EU.

If you have any questions or if you need your clothing or equipment for a specific date, holiday or trip please contact us via phone on 0191 2323561 or email web@ldmountaincentre.com

LD Mountain Centre reserve the right to amend orders placed with incorrect delivery options without notice. LD Mountain Centre does not accept responsibility for items being delayed through customs/ security checks or adverse weather conditions. There are no refunds on shipping costs unless LD Mountain Centre is responsible for the error. In the unfortunate event that a product is out of stock a member of our Customer Service Team will contact you.

For international orders, the couriers we use are Royal Mail, DPD and UPS.

Please be advised that for countries outside the EU, as well as the Canary Islands, there may be customs and VAT charges that the customer will be expected to pay. LD Mountain Centre are not liable for these payments. 

To request alternate shipping please email our customer service team. Please note, additional charges may apply when using alternate shipping.

All UK Next Working Day orders placed before 1pm (Monday-Friday) will be dispatched that day, subject to stock availability. Orders placed via UK Next Working Day on Friday Afternoon, Saturday or Sunday, will be dispatched on the next Monday. A signature/PIN code will often be required for delivery of goods with a value of more than £350 so please make sure someone is at the delivery address to receive the goods or send them to an address where someone will be available. Any required PIN Codes will be provided by DPD via text or email.

If you wish to send orders via Royal Mail instead of DPD, please contact our Customer Service team; however please note that you may be liable for any lost parcels and this service is only available within the UK.

In the unlikely event of a delay, we will endeavour to contact you by email or phone to let you know.

All delivery days are based on standard working days from Monday - Friday.*

Once your order has been dispatched from the warehouse you will receive a confirmation email to let you know it is on the way.

Returns Update:

Our team are currently processing all returns within 7-10 days of receipt. 

Returns

We ask that any returned items are unused/unworn and are returned within 30 days of their purchase date in the same packaging as they arrived, and with their product tags still attached.

Please Note: We are unable to accept any returns with any clear sign of cosmetic or fragrance use. We are also unable to accept any returns on Underwear, Electronics, DVDs or items governed by PPE Law (Snowsport and Climbing Helmets, Climbing Hardware, Climbing Ropes, Ice axes or Crampons.) 

Our Online Returns System makes it easy to exchange or return any unsuitable or unwanted products. If, for any reason, you wish to return an item you have purchased from the LD Mountain Centre Website please go to the Your Account section of our website. If you already have an account, please log in. If not, please register a new account using the same email address used when placing your order. 

Once logged in to your account, select the ‘My Order History’ link and on the new page select the order you wish to return. Mark the tick box beside the item(s) you wish to return and enter the quantity being returned. Once done, click the ‘Return Item(s)’ button at the bottom right of the page.

You will be sent an email with a returns form attached. Please print and complete the form, enclose the top part of the form with your item. If you do not have access to a printer, please include a hand written note stating your name, order number, and reason for return, and the preferred outcome - whether that's a refund or exchange. Exchanges will be based on stock levels at the time of processing. In the event that we aren't able to fulfil this request, a refund will be issued.

Please ensure that any returned items are sent using an Insured and Traceable mail service as LD Mountain Centre cannot accept any responsibility for items lost whilst in transit. 

We aim to process returned orders as quickly as possible once we have received them, however, in busy periods refunds and exchanges may take up to 14 working days to process.

Upon inspection of a returned product, LD Mountain Centre will issue a refund for the cost of the product(s) to the card used for the purchase. If the full order is returned within 7 days, a refund for the initial postage fee will also be processed. Any used items will be denied a refund and returned to the customer at his/her expense.

Warranty

All products purchased from LD Mountain Centre carry the full manufacturer warranty. For more information click through to our warranty page

LD Mountain Help Centre
We’ve worked really hard to provide you with these detailed help and support pages. You should be able to find answers to your questions here. Please use the links on the left to navigate to the relevant page. If, after taking a look at our help pages, you can’t find what you’re looking for please contact us: web@ldmountaincentre.com.