--- product_id: 3081606 title: "ECWCS Gen III Mid-Weight Underwear Bottoms - Insulated Cold Weather Base Layer" brand: "rothco" price: "Β₯19111" currency: JPY in_stock: true reviews_count: 8 url: https://www.desertcart.jp/products/3081606-ecwcs-gen-iii-mid-weight-underwear-bottoms-insulated-cold-weather store_origin: JP region: Japan --- # Elastic closure 100% Polyester Maximum durability ECWCS Gen III Mid-Weight Underwear Bottoms - Insulated Cold Weather Base Layer **Brand:** rothco **Price:** Β₯19111 **Availability:** βœ… In Stock ## Summary > Gear Up for Greatness! πŸ’ͺ ## Quick Answers - **What is this?** ECWCS Gen III Mid-Weight Underwear Bottoms - Insulated Cold Weather Base Layer by rothco - **How much does it cost?** Β₯19111 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/3081606-ecwcs-gen-iii-mid-weight-underwear-bottoms-insulated-cold-weather) ## Best For - rothco enthusiasts ## Why This Product - Trusted rothco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Versatile Use:** Perfect for outdoor adventures or everyday wear. - β€’ **Quality Assurance:** Tested to meet the highest standards of performance. - β€’ **Rugged Durability:** Engineered for the toughest environments, built to last. - β€’ **Unmatched Comfort:** Experience all-day comfort with a breathable design. - β€’ **Performance-Driven:** Stay agile and ready for action with optimal fit. ## Overview The Rothco Gen III Level II Underwear Bottoms are crafted from 100% polyester with an elastic closure, ensuring a snug fit and maximum durability. Designed for the most demanding users, these bottoms combine comfort and performance, making them ideal for both rugged outdoor activities and daily wear. ## Description Rothco makes quality outdoor and sports gear for all types of situation. Whether you are in a combat intensive environment, or if you are a recreational user, rothco will fit the lifestyle of many. Quality tested and performance driven, use rothco. ## Features - 100% Polyester - Elastic closure - Quality tested and ensured for maximum durability - Designed with only the toughest, roughest users in mind - Comfort and performance come hand in hand with rothco ## Images ![ECWCS Gen III Mid-Weight Underwear Bottoms - Insulated Cold Weather Base Layer - Image 1](263_QL70_.jpg) ![ECWCS Gen III Mid-Weight Underwear Bottoms - Insulated Cold Weather Base Layer - Image 2](395_FMwebp_QL65_.jpg) ![ECWCS Gen III Mid-Weight Underwear Bottoms - Insulated Cold Weather Base Layer - Image 3](526_FMwebp_QL65_.jpg) ![ECWCS Gen III Mid-Weight Underwear Bottoms - Insulated Cold Weather Base Layer - Image 4](658_FMwebp_QL65_.jpg) ![ECWCS Gen III Mid-Weight Underwear Bottoms - Insulated Cold Weather Base Layer - Image 5](789_FMwebp_QL65_.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fast service *by L***D on Reviewed in the United States πŸ‡ΊπŸ‡Έ on May 23, 2022* Great product and quality ### ⭐⭐⭐⭐ Good stuff *by A***N on Reviewed in the United States πŸ‡ΊπŸ‡Έ on January 2, 2013* These are an excellent second layer above some next to skin poly bottoms. They are impressively warm and will wick well with the material and waffle.The bad part is the fit, that's the minus 1 star. The sizing chart is wrong in my opinion and you need a size smaller than you'd think. Although I did not find that to be the case for the top. These even when fitting right in the thigh, butt, and more or less waist are (for my XL) way way too tall. I'm 6'4" and I think my XL's (which I got in exchange for an XXL because the XXL was the right waist on the chart but was like stepping into a trash bag in reality) are probably about 2-4 inches too long in the rise and almost 6 or more inches too long in the inseam. I just fold the extra material up in the leg beneath the knee. There isn't a good way to get rid of the excessive rise because any fold seems to come out with the weight of the crotch. These are way too thick and roomy in the crotch. Unless of course you have a sack the size of a grape fruit.All in all I am please with the product and will use them over a L1, I just thought it was fair to mention sizing and comfort is a little lacking it seems. ### ⭐⭐⭐⭐⭐ Very warm *by B***Y on Reviewed in the United States πŸ‡ΊπŸ‡Έ on January 2, 2014* I hiked for 14.4 miles over the top of Mt. Leconte and onto the Appalachian Trail in which half of the day snowed last weekend and was very warm. In fact, all I wore was the ECWCS silkweight pants (the top didn't come in time because of a mix up), the ECWCS level II thermal top and bottom, pants and a long sleeve shirt and a light jacket and a raincoat and pants to keep me dry. I was sweating and welcoming the cold snow blowing on my face. I originally started hiking with a thick jacket and after about 30 minutes took that off and just wore my shirt, pants and thermals for most of the day. I only put my light jacket and rain clothes on when it started snowing and I can honestly say that I could have probably even went without the light jacket because these thermals do an outstanding job of keeping you warm when it's cold. I believe the temperature was around 28. I bought a lot of equipment for this hike and I can honestly say this was one of the things I was most glad I bought right next to my Vasque breeze boots, Darn tough full cushion hiking socks, high sierra 45L pack, and my last minute purchase of Kahtoola microspike crampons (My favorite item, because while others were slipping on ice I could walk across with the confidence that I wasn't going to fall and hurt myself) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/3081606-ecwcs-gen-iii-mid-weight-underwear-bottoms-insulated-cold-weather](https://www.desertcart.jp/products/3081606-ecwcs-gen-iii-mid-weight-underwear-bottoms-insulated-cold-weather) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-01*