--- title: "Sea To Summit Ultralight XR Insulated" name: "Sea To Summit Ultralight XR Insulated" brand: "Sea To Summit" description: "The Sea to Summit Ultralight Insulated is an ultralight, packable, and durable sleeping pad designed for those looking for the ideal balance between weight and thermal comfort." handle: "sea-to-summit-ultralight-xr-insulated" sku: "045601" ean: "9327868990528" gtin: "9327868990528" canonical_url: "https://gramino.com/p/sea-to-summit-ultralight-xr-insulated" html_url: "/p/sea-to-summit-ultralight-xr-insulated" md_url: "/p/sea-to-summit-ultralight-xr-insulated.md" locale: "en" market: "eu" currency: "EUR" price: 143.2 price_formatted: "€143.20" availability: "OutOfStock" item_condition: "NewCondition" category: "Sleeping pads" category_path: "/c/sleep/sleeping-pads" breadcrumbs: - name: "Home" url: "/" - name: "Sleep" url: "/c/sleep" - name: "Sleeping pads" url: "/c/sleep/sleeping-pads" - name: "Sea To Summit Ultralight XR Insulated" url: "/p/sea-to-summit-ultralight-xr-insulated" last_updated: "2026-07-08" --- # Sea To Summit Ultralight XR Insulated Brand: Sea To Summit · Category: [Sleeping pads](/c/sleep/sleeping-pads.md) Sleeping pad size: Small, Large, Regular · Sleeping pad type: Inflatable · R-value: 3.6 ## Offer - Price: €143.20 - Availability: Out of stock - Condition: New - Buy on the website: [HTML product page](/p/sea-to-summit-ultralight-xr-insulated) ## Description The Sea to Summit Ultralight Insulated is an ultralight, packable, and durable sleeping pad designed for those looking for the ideal balance between weight and thermal comfort. Thanks to Air Sprung Cells™ technology, it offers unmatched stability, while its two insulating layers keep you warm from spring through fall. It's wide and tall enough for active sleepers, and its materials give it excellent durability. ## What makes this product special? An ultralight, superbly packable, and durable sleeping pad for comfortable sleep in any position. inflatable sleeping pad, year-round, hybrid 30D/40D nylon with TPU laminate and Ultrafresh anti-mold treatment, ThermalCore insulation with a TRM layer, 151 Air Sprung Cell™ air cells, R-value 3,6, thickness 6,5 cm, weight 390 g, multifunction XPRESS valve, PillowLock™ system for attaching a pillow, wider profile suited to side sleepers ## Specifications The **Sea to Summit** **Ultralight XR** **Insulated** combines exceptional comfort, thermal insulation, and an ultralight build – the ideal choice for demanding expeditions and ultralight treks, where every gram and every night's sleep quality counts. The mat offers unmatched stability and comfort thanks to **151 Air Sprung Cells™**, which contour precisely to your body and reduce uncomfortable pressure points. The pad's wider profile is an ideal choice for those who sleep on their side or turn over frequently at night. Its comfortable **6.5 cm thickness** also contributes to a good night's sleep. The combination of hybrid **30/40D nylon** and **TPU laminate with Ultrafresh treatment** (anti-mold) ensures high, field-proven durability. **ThermalCore** insulation effectively reflects body heat, boosting the R-value (**R=3.6**) while keeping the packed size to a minimum. The pad is designed with a focus on minimal weight and pack volume. Once packed, it **takes up minimal space**, making it the ideal companion for treks of any length. ## Material and construction The pad features a **multifunctional XPRESS valve**, which makes inflating, deflating, and adjusting pressure **faster** and **easier** than before. Air Sprung Cell™ technology (air-sprung cells) provides excellent body support while you sleep – **each cell behaves independently** and doesn't affect its neighbors (so when you toss and turn, you won't get that "floating" feeling). The pad is built from tough hybrid **30D/40D nylon**, which combined with a **TPU laminate** treated with **Ultrafresh** technology ensures real durability even in demanding terrain. Inside the pad sits **ThermalCore** insulation with a single TRM layer that effectively reflects heat back to you. This layer **reduces air movement inside the pad**. The result is a **higher R-value** (R=3.6) along with reduced weight and packed volume. Thanks to the **PillowLock™** system, the pad is fully compatible with Sea to Summit pillows, which stay securely in place all night long thanks to the attachment points. ## Technical parameters | Weight | 390 g | | --- | --- | | Sleeping pad type | Inflatable | | R-value | R=3.6 | | Insulation | ThermalCore | | Unfolded size | 55 x 168 cm, 55 x 183 cm, 64 x 198 cm | | Packed size | 10 x 19 cm, 10.5 x 22 cm | | Thickness | 6.5 cm | | Usage | Three-season | ## Accessories Along with the pad itself, you'll get a storage sack with an integrated **Airstream inflation bag** and a repair kit. Using the inflation bag not only makes inflating the pad significantly easier and faster, but also saves your breath – handy especially when sleeping at higher altitudes. What's more, using the inflation bag means you're not needlessly pumping moist air into the pad, which over time can lead to mold growth inside it. For even easier inflation, you can pick up the [Flextail TINY pump 2X](/p/flextail-tiny-pump-2x) or the [Flextail ZERO pump](/p/flextail-zero-pump), which makes it completely effortless. ## Specs - Color: Orange - Sleeping pad size: Small, Large, Regular - Sleeping pad type: Inflatable - R-value: 3.6 - Season: 3-season - Insulation type: ThermalCore - Material: 30D/40D nylon - Material composition: Nylon, Thermoplastic polyurethane (TPU), TRM Reflective Film - Dimension: 55 x 168 cm, 55 x 183 cm, 64 x 198 cm - Packed dimensions: 10 x 19 cm, 10,5 x 22 cm - Thickness: 6,5 cm - Weight: 390 g - Length: 168 cm - Width: 55 cm - Brand: Sea To Summit ## Variants - Sea To Summit Ultralight XR Insulated - Small · SKU 045601 · EAN 9327868990528 · €143.20 · Out of stock · Small, Orange - Sea To Summit Ultralight XR Insulated - Large · SKU 045603 · EAN 9327868990504 · €168.60 · Out of stock · Large, Orange - Sea To Summit Ultralight XR Insulated - Regular · SKU 045602 · EAN 9327868990511 · €151.70 · Out of stock · Regular, Orange ## Related - [Therm-a-Rest NeoAir XLite NXT](/p/therm-a-rest-neoair-xlite-nxt.md) - [Flextail TINY Pump 3X](/p/flextail-tiny-pump-3x.md) - [Sea To Summit Ether Light XT™ Insulated](/p/sea-to-summit-ether-light-xt-insulated.md) - [Flextail ZERO Pump 2](/p/flextail-zero-pump-2.md) - [Big Agnes Zoom UL Insulated](/p/big-agnes-zoom-ul-insulated.md) - [NEMO Tensor Trail](/p/nemo-tensor-trail.md) - [Sea To Summit Aeros Premium Pillow (2026)](/p/sea-to-summit-aeros-premium-pillow-2026.md) - [Sea To Summit Ether Light XR Insulated](/p/sea-to-summit-ether-light-xr-insulated.md) ## Shipping and returns - [Shipping and payment](/shipping-payment) - [Returns](/return-order) ## Images - ![Sea To Summit Ultralight XR Insulated](https://media.gramino.com/medusa/Sea-To-Summit-Ultralight-XR-Insulated-Mat-Small-1-01KX17QPANEPQ407VTNYYNWNPM.jpg) - ![Sea To Summit Ultralight XR Insulated](https://media.gramino.com/medusa/Sea-To-Summit-Ultralight-XR-Insulated-Mat-Small-3-01KX17QPZ2BX5AW9WAPBFRJ0C5.jpg) - ![Sea To Summit Ultralight XR Insulated](https://media.gramino.com/medusa/Sea-To-Summit-Ultralight-XR-Insulated-Mat-Small-4-01KX17QQ75YK6PCPN3E2CFDSE7.jpg) - ![Sea To Summit Ultralight XR Insulated](https://media.gramino.com/medusa/Sea-To-Summit-Ultralight-XR-Insulated-Mat-Small-2-1-01KX17QPM29P36VF5SC6T6GVE1.jpg) - ![Sea To Summit Ultralight XR Insulated](https://media.gramino.com/medusa/Sea-To-Summit-Ultralight-XR-Insulated-Mat-Regular1-01KX17QV4N978KQA6K36F3JWM8.jpg) - ![Sea To Summit Ultralight XR Insulated](https://media.gramino.com/medusa/Sea-To-Summit-Ultralight-XR-Insulated-Mat-Regular-3-01KX17QVT6Y0W7FDTPQGQN8WFZ.jpg) - ![Sea To Summit Ultralight XR Insulated](https://media.gramino.com/medusa/Sea-To-Summit-Ultralight-XR-Insulated-Mat-Regular-4-01KX17QW1W7D9FJQJA1GN2RXMN.jpg) - ![Sea To Summit Ultralight XR Insulated](https://media.gramino.com/medusa/Sea-To-Summit-Ultralight-XR-Insulated-Mat-Regular-2-01KX17QVG7G6BHF5TFHXPNGANM.jpg) ## Identifiers - SKU: 045601 - EAN: 9327868990528 - Handle: sea-to-summit-ultralight-xr-insulated - Brand: Sea To Summit This product is also available as [HTML](/p/sea-to-summit-ultralight-xr-insulated). 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