SKU: 8377457036

Sea To Summit Ultralight Women's SI Sleeping Mat Large

Sale price$161.95 Regular price$179.95
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Ships within 48 hours · Estimated delivery Sep 3 - Sep 8

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Description

Sea To Summit Ultralight Women's SI Sleeping Mat LargeDesigned to meet the unique needs of female physiology, our Womens Ultra Light S. I. Mat provides increased warmth and sleeping comfort in a small and light package. The foam used in our Womens specific Delta Core V graduated pattern uses a mix of smaller holes and solid foam under core body zones for extra warmth where women often feel the cold most. Featuring a womens specific shape that is wider at the hip and narrower at the shoulder, the anti

Designed to meet the unique needs of female physiology, our Women’s Ultra Light S.I. Mat provides increased warmth and sleeping comfort in a small and light package. The foam used in our Women’s specific Delta Core-V graduated pattern uses a mix of smaller holes and solid foam under core body zones for extra warmth where women often feel the cold most. Featuring a women’s specific shape that is wider at the hip and narrower at the shoulder, the anti-slip print on the top and base of the mat holds it in place when camping on sloping ground is unavoidable. Made from lightweight 30D polyester with extrusion laminated TPU, it packs down incredibly small for minimalist adventures.

FEATURES

  • Women’s specific Delta Core profile developed to create warmer core body zones
  • Wider at the hip and narrower at the shoulder
  • Multi-function, high flow-rate valve
  • Larger vertical Delta Cores in non-body contact areas reduce the mat’s weight and bulk
  • Anti-slip print on top and base keeps it in place
  • Lightweight 30D polyester with extrusion laminated TPU used on top and base
  • Pillow Lock attaches your Aeros pillow to your mat, holding it in place for a slip-free sleep

TECH SPECS

Weight
L: 645g
Dimensions
L: 183 x 53 x 2.5cm
Material

Outer: 100% Nylon with TPU Lamination
Insulation: 100% Polyester
Valve: 100% TPU
Valve Flap: 100% Silicone
Stuff sack: 100% Polyester

Packed dimensions
L: Ø13.4 x 30cm
Thickness

2.5cm

R-value

2.9

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8377457036

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4.6 ★★★★★
Based on 17 reviews
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Verified Purchase
Deborah Flores Johnson
Boise, US
★★★★★ 5
Worked great
Style: SPF 30, Size: 3 Ounce (Pack of 1)
My skin is very sensitive to the sun. My skin does not tan I sun burn quickly! I love this sunblock because according to the ingredients it's reef & sea animal friendly. I found this product didn't leave a very noticeable white cast on my skin. I was able to blend it with very little noticeable white cast. I didn't find it sticky or really rubbing off on my clothes or bathing suite. In respect to all the things I mention it was all at a very minimal notice. For me it didn't have a smell of any kind. I used this product on vacation in Mexico. I tried & stayed out of the sun as much as I could. I went on a Mayan ruin tour following a snorkeling excursion & did not get a sunburn! Usually for that long period of time in the sun I would have received a light sunburn using other sunblocks but instead I actually got a light tan! I did apply this product on my body & face. I have to say this is my 1st time using this brand & it worked super well for me. :) *Just FYI when I applied this product I didn't need to apply to much if you do its going to obviously leave a white cast. I only applied as needed through out the day. Also make sure you give it time to sit to soak into your skin before putting on your clothes. After all you do have to wait a few min after applying before going out in the sun. That's any sunblock directions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2022
J
Verified Purchase
J Miller
Chelsea, US
★★★★★ 5
Finally! A sunscreen that works and does not burn my eyes.
Style: SPF 30, Size: 3 Ounce (Pack of 1)
I am unable to use chemical or hybrid sunscreens on my face because they "melt" and destroy my eyes. Living in the south means daily sunscreen year-around is a must - having found this product is a godsend. Unscented, no chemicals to discolor my clothes, no titanium dioxide so no purple-white ghostly cast, easily rubs in. Simply perfect!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2025
A
Verified Purchase
Amazon Customer
Houston, US
★★★★★ 5
Effective Mineral Sun Protection
Style: SPF 30, Size: 3 Ounce (Pack of 1)
This mineral sunscreen does a great job at blocking the sun. It applies smoothly, although it does have a slightly pasty texture which is typical of mineral sunscreens. I love that it was on the thinner side for consistency which makes it easy to apply evenly. We used it extensively last summer and it kept us well protected. We'll definitely be using it again this summer!
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Reviewed in the United States on February 13, 2025
C
Verified Purchase
Cher
Fort Morgan, US
★★★★★ 4
good consistency
Style: SPF 30, Size: 3 Ounce (Pack of 1)
It is a body lotion and for that it's great but it's a bit white for face unless you are very fair. Not shiny which is a plus and goes on evenly.
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Reviewed in the United States on April 25, 2026
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Verified Purchase
Popstar888
Charlottesville, US
★★★★★ 5
This is the only sunscreen that doesn't give me an allergic reaction
Style: SPF 30, Size: 3 Ounce (Pack of 1)
I've tried many other sunscreens and all of them give me an allergic reaction, or they are very thick and leave a white residue. This, though, does neither of those things. It's just the right consistency. I've purchased this twice now and will purchase more in the future, I'm sure.
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Reviewed in the United States on December 7, 2025

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