STS - Sea to Summit Alto Tent

The Sea to Summit Alto Tent is a top-tier, semi-freestanding ultralight shelter, engineered for backpackers who refuse to compromise on comfort or livability. With its revolutionary Tension Ridge™ architecture, the tent offers an impressive amount of headroom, vertical walls, and oversized doors for easy access and expansive views—making every campsite feel more welcoming.

Constructed for three-season use, the Alto Tent features a canopy made from lightweight, ultra-breathable 15-denier polyester mesh, complemented by a durable 15-denier ripstop nylon floor for reliable protection from the ground. The rainfly is crafted from 15-denier ripstop nylon with a 1200mm hydrostatic head, ensuring dependable waterproofing in variable conditions.

The tent’s structure is anchored by high-quality DAC Featherlite NFL 8.7mm and NSL 9.0mm aluminum poles, renowned for their strength-to-weight ratio. Quick-connect machined aluminum pole feet make setup effortless, while the patented Tension Ridge design not only enhances space but also improves ventilation with strategically placed Apex and Baseline Vents, which minimize condensation and maximize airflow.

Every Sea to Summit tent comes with the Fair-share Storage system, enabling you to split the load among your group. Two stuff sacks double as handy internal pockets, while the pole sack transforms into a Lightbar™ for ambient illumination when paired with a headlamp. The Alto Tent is available in both one and two-person configurations, making it a versatile choice for solo adventurers or small groups.

With its blend of innovative features, premium materials, and thoughtful design, the Sea to Summit Alto Tent sets a new standard for ultralight backpacking shelters—delivering comfort, convenience, and reliability wherever your journey takes you.