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.
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.
Sea to Summit Reactor Midweight Liner
The Sea to Summit Reactor Midweight Liner is a versatile thermal sleeping bag liner designed to add warmth, comfort, and hygiene to your sleep system. Made with stretch-knit Thermolite® Pro fabric and Far Infrared (FIR) technology, it helps trap and reflect body heat, adding up to 6°C of extra warmth without excess bulk. Integrated armholes and stretch construction allow unrestricted movement throughout the night, while HeiQ Fresh odour control keeps the liner fresher on extended trips. Lightweight and quick-drying, it’s ideal for backpacking, camping, bikepacking, and travel.
Sea to Summit Aeros Premium Pillow
The Sea to Summit Aeros Premium Pillow offers standout comfort in a compact, travel-ready design. A memory foam layer and soft recycled fabric provide stable, cushioned support for better sleep outdoors. Its contoured shape fits neatly into sleeping bag hoods, while the PillowLock™ system keeps it securely in place. Easy to inflate and highly packable, it’s built for convenience as well as comfort. Ideal for camping, backpacking, and travel.
Sea to Summit Camp Self Inflating Sleeping Mat
The Sea to Summit Camp Self Inflating Sleeping Mat offers dependable comfort with a simple, hassle-free setup. Body Mapped Insulation provides warmth where it’s needed while keeping weight efficient. The XPEL™ valve makes inflation, adjustment and packing down quick, while its contoured shape increases usable sleep space for better comfort in any position. Ideal for camping, road trips and basecamp use.
Sea to Summit Ultralight XR Insulated Air Sleeping Mat
The Sea to Summit Ultralight XR Insulated Air Mat delivers impressive warmth and comfort in a truly lightweight and packable design. An Air Sprung Cell™ construction provides even support and reduces pressure points for a more restful sleep, while thermalCore insulation reflects body heat for reliable performance in cooler conditions. Compact and easy to carry, it’s ideal for backpacking and fast-paced adventures. Built to provide comfort, durability and efficiency on every trip.
MSR Hubba Hubba HD 2-Person Backpacking Tent
The MSR Hubba Hubba HD 2-Person Backpacking Tent is a lightweight yet highly protective shelter designed for demanding backpacking conditions. With stronger fabrics and reduced mesh, it offers improved warmth and weather resistance compared to lighter models. Its spacious rectangular interior and excellent headroom provide comfort on multi-day trips. Easy to pitch and highly stable, it performs well in unpredictable weather. Ideal for UK backpacking, it delivers reliable protection without added bulk.
MSR Hubba Hubba HD 1-Person Backpacking Tent
The MSR Hubba Hubba HD 1-Person Backpacking Tent is a lightweight yet highly protective shelter designed for solo backpacking in challenging conditions. With stronger fabrics and reduced mesh, it offers improved warmth and weather resistance compared to lighter models. Its spacious rectangular interior and excellent headroom provide comfort on longer trips. Easy to pitch and highly stable, it performs reliably in unpredictable weather. Ideal for UK adventures, it delivers dependable protection without added bulk.
MSR Hubba Hubba LT 2-Person Backpacking Tent
The MSR Hubba Hubba LT 2-Person Backpacking Tent is a lightweight and breathable shelter ideal for warm-weather backpacking. Its spacious rectangular interior and micromesh design provide excellent ventilation and comfort. Large vestibules and practical storage features make it easy to organise gear on the go. Quick to pitch and easy to carry, it’s perfect for lightweight adventures. Ideal for milder conditions, it offers comfort without unnecessary weight.
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 Down Sleeping Bag (-6°C)
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.
Rab Ascent Down Sleeping Bag (0°C)
The Rab Ascent (0°C) Sleeping Bag is a lightweight 650FP down sleeping bag designed for summer camping and spring bothy trips. Featuring a wide mummy fit, Pertex® Quantum 20D ripstop fabric and L.O.F.T™ baffle construction, it maximises warmth-to-weight efficiency. With a 0°C limit rating and compact 20cm x 35cm packed size, it offers comfort without bulk. Hand-filled in the UK for superior loft and performance.
Highlander NAP-PAK Arctic R11 Inflatable Sleeping Mat
The Highlander NAP PAK Arctic R11 Inflatable Sleeping Mat offers true four season insulation with an impressive R value of 11. Lightweight and compact, it provides excellent warmth without adding bulk. A 10cm thick baffle design ensures comfort on cold ground. Ideal for winter camping and cold weather adventures.