Gearnalysis

Sea to Summit Ultralight Women's Insulated vs. Exped Ultra 3R

A close look at two sleeping pads buyers cross-shop. The Ultralight Women's Insulated leans on warmth while the Ultra 3R answers with low weight, so the pick comes down to which you value.

Best for:
Fine-tune ↗
Sea to Summit
Ultralight Women's Insulated
80GearScore
Inflatable · R3.5
wins 5 specs
Exped
Ultra 3R
77GearScore
Inflatable · R3.2
wins 4 specs
Sea to Summit Ultralight Women's InsulatedExped Ultra 3R
GearScore80✓77
Warmth (R-value)3.5 R✓3.2 R
Weight16.9 oz16.5 oz✓
Warmth-to-weight0.73 R/100g✓0.68 R/100g
Packed size3.44 L2.16 L✓
Thickness2.0 in3.0 in✓
Durability39 /100✓12 /100
Price$179$170✓
Features1Pump sack included✓0
TypeInflatableInflatable
ShapeTaperedRectangular

Highlighted cells mark the better spec: Ultralight Women's Insulated in blue, Ultra 3R in amber. A blank spec is never counted as a win. GearScore is the rating for the Overall use-case (0 to 100). Pick another above to re-score. Prices are current MSRP.

Put the Sea to Summit Ultralight Women's Insulated next to the Exped Ultra 3R and the trade-offs are clear. The Ultralight Women's Insulated wins on warmth and warmth-to-weight, and the Ultra 3R pushes back on low weight and packability.

The Ultralight Women's Insulated is warmer (R 3.5 vs R 3.2), stronger on warmth-to-weight, and more durable. The Ultra 3R is 1 oz lighter, more packable (2.2 L vs 3.4 L), and thicker for more cushion. On the default GearScore the Ultralight Women's Insulated leads 80 to 77.

Pick the Ultralight Women's Insulated if you care most about warmth and warmth-to-weight, which makes it the better call for colder nights and shoulder-season trips. Pick the Ultra 3R if low weight and packability matter more to you, or you are focused on counting grams on long miles.

Common questions

Which is warmer?

The Sea to Summit Ultralight Women's Insulated. It is warmer (R 3.5 vs R 3.2) than the Ultra 3R.

Which is lighter?

The Exped Ultra 3R. It is 1 oz lighter than the Ultralight Women's Insulated.

Which has the higher GearScore?

The Sea to Summit Ultralight Women's Insulated, 80 to 77 on the default algorithm. You can re-weight the factors to match your trip.

Ultralight Women's Insulated or Ultra 3R, which should you buy?

It depends on your priorities. Go with the Ultralight Women's Insulated for warmth, or the Ultra 3R for low weight. The spec table above shows exactly where each wins.