**Product Specifications:**
**Brand:** FOOTOPPO
**Product Name:** Sheep Wool Warm Insoles
**Material:** Genuine sheep wool + sheep wool felt
**Thickness:** Approximately 2.2cm
**Size:** 37-44
**Features:** Locks in warmth, delicate and breathable
**Product Dimensions (Length in mm):**
- Size 37: 235mm
- Size 38: 240mm
- Size 39: 245mm
- Size 40: 250mm
- Size 41: 255mm
- Size 42: 260mm
- Size 43: 265mm
- Size 44: 270mm
**Description:** These insoles are made of high-quality sheep wool with an average length of 22mm, providing warmth and comfort. The double-layer design ensures superior insulation and breathability. The innovative seamless cutting and whole leather design enhance warmth and durability. Ideal for keeping your feet warm and cozy during the winter.
**Certification:** Tested and approved by CTI Testing Laboratory
**Certification Number:** No.S537491309
**Testing Standard:** GB/T38416-2019
**Test Results:** Material identified as sheepskin and wool according to the standard
**Manufacturer:** CTI Testing Laboratory
**Address:** 1351 Wanfang Road, Minhang District, Shanghai, China
**Test Report:** A2240351242144001C
**Pages:** 4
**Date:** July 5, 2024
**Additional Information:** For detailed test results, please refer to the complete testing report provided by CTI Testing Laboratory.