This is UNIQLO's Extra Warm HEATTECH. There is pilling and damage from use on the inside, especially on both calves and the buttocks. I'm selling it because it has a unique design. It can be used without issue if you wear low-rise boxer briefs or trunks. ◆ Color: S ◆ Size: Gray and black houndstooth ◆ Condition: Purchased around 2015. It has been used for about 5 seasons, so the condition is not good. I'm selling it because it has a unique houndstooth design and it would be a shame to throw it away. Please understand that this is a used item in poor condition before purchasing. UNIQLO product number: 371-172770 ◆ Other ・Please do not purchase if you are sensitive to used items. ・As expected, it has been washed at home. I included this in the description because it is required to be stated on Mercari. ● Related words UNIQLO HEATTECH EXTRA WARM HEATTECH HEATTECH Free shipping Anonymous shipping Autumn Winter 2025 2026 Men's Male Man Short stature Clothing UNIQLO