Up and Under outdoor gear in Cardiff specialize in Tents, sleeping bags, camping mats and stoves for car camping, lightweight backpacking, mountaineering, mountain marathons and expeditions. You'll find everything that you need here, just dive on in.
Lifeventure Thermolite Sleeping Bag Liner
The Lifeventure Thermolite Sleeping Bag Liner adds up to 15°C of warmth to your sleeping bag without extra bulk. Lightweight, soft and moisture-wicking, it features a drawstring hood for improved heat retention and Polygiene® odour control for freshness on multi-day trips. Ideal for cold-weather camping or standalone use in warmer climates.
Rab Neutrino Down Sleeping Bag (-12°C)
The Rab Neutrino Down Sleeping Bag (-12°C) is a lightweight yet exceptionally warm sleeping bag designed for alpine adventures and winter trekking. Filled with premium 800FP goose down and built with advanced L.O.F.T 3D™ baffle construction, it delivers reliable insulation while remaining highly packable. The durable Pertex® Quantum shell balances protection with minimal weight, making it ideal for mountaineering and fast moving expeditions. With a comfort rating of -5°C and a limit rating of -12°C, the Neutrino is built to keep you warm when temperatures drop in the mountains.
Rab Neutrino Down Sleeping Bag (-6°C)
The Rab Neutrino Down Sleeping Bag (-6°C) is a lightweight and highly packable alpine sleeping bag designed for trekking and mountaineering adventures. Filled with premium 800FP goose down and built with advanced L.O.F.T 3D™ baffle construction, it delivers reliable warmth while remaining compact and efficient to carry. The durable Pertex® Quantum shell balances lightweight performance with added protection where it matters most. With a comfort rating of 0°C and a limit rating of -6°C, the Neutrino is an excellent choice for three season mountain trips and fast moving alpine expeditions.
Rab Neutrino Down Sleeping Bag (0°C)
The Rab Neutrino Down Sleeping Bag (0°C) is a lightweight alpine sleeping bag designed for summer mountaineering and fast moving backpacking trips. Filled with premium 800FP goose down and built with advanced L.O.F.T 3D™ baffle construction, it provides reliable insulation while remaining compact and highly packable. The Pertex® Quantum shell balances durability and minimal weight, making it ideal for technical adventures in warmer mountain conditions. With a comfort rating of 5°C and a limit rating of 0°C, it’s a great choice for lightweight alpine camping and trekking.
Rab Mythic Down Sleeping Bag (-6°C)
The Rab Mythic Down Sleeping Bag (-6°C) delivers exceptional warmth at just 700g, featuring 900FP European goose down and innovative L.O.F.T 3D™ baffles for maximum loft retention. A heat-reflective TILT lining enhances thermal efficiency while keeping weight to a minimum. With a compact 18cm x 30cm pack size and ISO comfort rating of 0°C, it’s ideal for fastpacking, trekking and alpine missions.
Rab Mythic Down Sleeping Bag (0°C)
The Rab Mythic Down Sleeping Bag (0°C) combines ultralight design with exceptional warmth, perfect for fast-moving trekking and spring alpine adventures. Weighing only 500g and packing down small, it uses 900FP hydrophobic European goose down with L.O.F.T 3D™ baffles to eliminate cold spots. The heat-reflective TILT lining enhances warmth while keeping the bag compact and efficient. Durable Pertex® Quantum ripstop outer and recycled Atmos™ lining protect against the elements, and the tapered mummy shape with cinchable hood maximizes heat retention. Hand-filled in Derbyshire, UK, it comes with a compression dry bag and water-resistant storage sack for easy transport.
Sea to Summit Horizon Cutlery Set (2 Piece)
The Sea to Summit Horizon Cutlery Set (2 Piece) is a lightweight, BPA-free camping utensil set made from durable glass-reinforced polypropylene. Featuring a nesting, clip-together design that converts into a long-handled spork, it’s ideal for minimalist backpacking and trekking adventures. Weighing just 16g, it’s compact, strong and easy to clean.
Sea to Summit Horizon Cutlery Set (3 Piece)
The Sea to Summit Horizon Cutlery Set (3 Piece) is a lightweight, BPA-free camping utensil set made from durable glass-reinforced polypropylene. Featuring a nesting, clip-together design that converts into long-handled utensils, it’s ideal for backpacking and minimalist adventures. Compact, strong and easy to clean at just 24g.
MSR Hubba Hubba HD 2-Person Backpacking Tent
Love the Hubba Hubba LT but want something with a bit more warmth and protection from a still super light, roomy backpacking tent then the MSR Hubba Hubba HD 2-Person Backpacking Tent could be the one for you. We love this for a more British conditions backpacker than the LT version with higher denier and hydrostatic heads on the fly and particularly the groundsheet and a lot less mesh on the inner tent at a weight increase of only 130g.
MSR Hubba Hubba HD 1-Person Backpacking Tent
Love the Hubba Hubba LT but want something with a bit more warmth and protection from a still super light, roomy backpacking tent then the MSR Hubba Hubba HD 1-Person Backpacking Tent could be the one for you. We love this for a more British conditions backpacker than the LT version with higher denier and hydrostatic heads on the fly and particularly the groundsheet and a lot less mesh on the inner tent at a weight increase of only 130g.
MSR Hubba Hubba LT 2-Person Backpacking Tent
The MSR Hubba Hubba LT 2 is even lighter than the previous super popular Hubba Hubba. It is light and airy and roomy enough for 2 in comfort. Ideal for backpacking in warm temperate climates and works well without the fly in hotter conditions. Super quick pitching with large vestibules and StayDry™ rain gutters to catch any drips when you try to exit the tent. The micromesh inner provides bug protection, perfect for star-gazing on clear nights. A large overhead gear loft is great for storage and lets you dry out damp clothes. The Bottom Line: This is your new favorite tent, whether you take it on weekend backpacks, kayak-to-camp trips or anywhere else you need a spacious, lightweight shelter.
MSR Hubba Hubba LT 1-Person Backpacking Tent
The MSR Hubba Hubba LT 1-Person Tent is a lightweight and breathable solo backpacking tent designed for three-season adventures. Its rectangular floorplan offers excellent living space, while the micromesh canopy provides superb airflow and bug protection. Durable DAC poles and a waterproof rainfly ensure reliable performance in changing weather conditions. Ideal for backpacking, bikepacking and multi-day trekking trips.
Rab Ultrasphere 1.5
The Rab Ultrasphere 1.5 is an ultra-lightweight (310g) inflatable sleeping mat built for fast & light mountain missions. Featuring innovative offset air chambers and an R-value of 1.4, it delivers efficient summer warmth without added bulk. The tapered mummy shape and compact pack size make it ideal for thru-hiking, bike-packing and multi-day runs. An 8cm thickness ensures reliable comfort at minimal weight.
Rab Ultrasphere 5
The Rab Ultrasphere 5 is a 345g ultralight insulated air mat delivering exceptional warmth with an R-value of 5.5. Featuring dual-layer TILT reflective technology and offset air chambers, it maximises heat retention without added bulk. The tapered mummy design and compact pack size make it ideal for bikepacking, thru-hiking and alpine missions. A premium warmth-to-weight solution for fast & light mountain adventures.
Rab Radeon Synthetic Sleeping Bag (6°C)
The Rab Radeon Synthetic Sleeping Bag (6°C) is a durable, moisture-resistant synthetic sleeping bag built for trekking and camping in variable conditions. Featuring recycled Stratus™ insulation with WARM WAVE™ construction, it delivers reliable warmth down to a -6°C limit rating. The 20D Atmos™ ripstop outer with fluorocarbon-free DWR offers windproof, water-resistant protection. A dependable all-rounder for mountain bothies, desert bivis and shoulder-season adventures.
Rab Ascent -6C
The Rab Ascent -6°C Sleeping Bag is a 650FP down trekking sleeping bag built for reliable 3-season mountain use. Featuring a wide mummy fit, Pertex® Quantum outer and L.O.F.T™ baffle construction, it maximises warmth-to-weight efficiency. With a Limit of Comfort rating at -6°C and hydrophobic duck down insulation, it delivers dependable protection in cold and damp conditions. Ideal for backpacking, camping and regular mountain use.