Sea to Summit Self Inflating Delta V Seat
Sea to Summit

Sea to Summit Self Inflating Delta V Seat

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Delta SI V Self-Inflating Seat
Delta SI V Self-Inflating Seat
3.8cm / 1.5in Thick · 96g · Folding Seat + Backrest · Compact

The Delta SI V is a self-inflating seat that folds in half to create both a cushioned seat and a supportive backrest. Unfolded, it lays flat as a sit pad; folded into its V-shape, it turns a log, boulder, or camp chair into a comfortable lounge anywhere you set it down.

Two Configurations in One Pad
Use it unfolded as a 3.8cm sit pad, or fold it into a V-shape for combined seat and backrest support against a log, boulder, or camp chair.
Compact and Lightweight
Cored foam keeps the pad light and packable at just 96 grams, with a packed size that fits in a jacket pocket or hipbelt.
Fast Inflation and Fine-Tuning
The patented low-profile multi-function mini-valve inflates quickly, deflates fast, and lets you dial in your preferred firmness.
Built for the Outdoors
A durable 75D polyester base resists abrasion against rough ground, while the soft 30D stretch-knit top sits comfortably against skin or base layers.
Storage Sack Included
Stuff sack keeps the seat clean and contained in your pack between uses.
Dimensions
Open (Flat)
40 × 3.8 × 30 cm / 16 × 1 × 12 in
Thickness
3.8 cm / 1.5 in
Weight
Pad Only
96 g / 3.4 oz
Packed (with stuff sack)
106 g / 3.7 oz
Packed Size
Folded
8 × 8 × 8 cm / 3 × 3 × 3 in
Materials
Top Fabric
30D Polyester stretch knit
Base Fabric
75D Polyester
Foam
Polyurethane (cored)
Valve
TPU with silicone flap
What's Included
In Box
Storage sack

Wipe clean with a damp cloth; air dry before storing.

Store unrolled with the valve open to preserve foam loft.

Keep away from open flames and high heat sources.

Shipping Policy

Components:

All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 2-5 business days of purchase.

Bicycles:

Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.

Riding Gear & Apparel:

Riding gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 2-5 business days.

Returns & Exchanges:

If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.

For full details, please see our Refund Policy before initiating a return.

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Prepared with intention.

Every product is carefully inspected and handled by our team before it ships. From fit and function to final details, we make sure each piece is ready for the outdoors ahead—so you can focus on the experience, not the gear.

Passion drives us

At SpokeX Bike Co., bikes aren't just our business — they’re our way of life. As a rider-owned and operated shop, every decision we make comes from firsthand experience on the trail, at the race, and on the open road. We know what it’s like to chase a new line, push through the pain cave, and celebrate the ride — because we live it every day.

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